code style fixes + const check fix

Mpdf/Config/ConfigVariables.php

@@ -76,7 +76,7 @@ class ConfigVariables
 			// Uses Adobe CJK fonts for CJK languages
 			// default TRUE, only set false if you have defined some available fonts that support CJK
 			// If true this will not stop use of other CJK fonts if specified by font-family:
-			// and vice versa i.e. only dictates behaviour when specified by lang="" incl. AutoFont()
+			// and vice versa i.e. only dictates behavior when specified by lang="" incl. AutoFont()
 			'useAdobeCJK' => false,
 
 			// When embedding full TTF font files, remakes the font file using only core tables

PhpOffice/Common/Adapter/Zip/PclZipAdapter.php

@@ -7,7 +7,7 @@ use PclZip;
 class PclZipAdapter implements ZipInterface
 {
     /**
-     * @var PclZip
+     * @var \PclZip
      */
     protected $oPclZip;
 
@@ -18,8 +18,8 @@ class PclZipAdapter implements ZipInterface
 
     public function open($filename)
     {
-        $this->oPclZip = new PclZip($filename);
+        $this->oPclZip = new \PclZip($filename);
-        $this->tmpDir = sys_get_temp_dir();
+        $this->tmpDir = \sys_get_temp_dir();
 
         return $this;
     }
@@ -31,17 +31,17 @@ class PclZipAdapter implements ZipInterface
 
     public function addFromString($localname, $contents)
     {
-        $pathData = pathinfo($localname);
+        $pathData = \pathinfo($localname);
 
-        $hFile = fopen($this->tmpDir . '/' . $pathData['basename'], 'wb');
+        $hFile = \fopen($this->tmpDir . '/' . $pathData['basename'], 'wb');
-        fwrite($hFile, $contents);
+        \fwrite($hFile, $contents);
-        fclose($hFile);
+        \fclose($hFile);
 
         $res = $this->oPclZip->add($this->tmpDir . '/' . $pathData['basename'], PCLZIP_OPT_REMOVE_PATH, $this->tmpDir, PCLZIP_OPT_ADD_PATH, $pathData['dirname']);
         if ($res == 0) {
             throw new \Exception('Error zipping files : ' . $this->oPclZip->errorInfo(true));
         }
-        unlink($this->tmpDir . '/' . $pathData['basename']);
+        \unlink($this->tmpDir . '/' . $pathData['basename']);
 
         return $this;
     }

PhpOffice/Common/Adapter/Zip/ZipArchiveAdapter.php

@@ -7,7 +7,7 @@ use ZipArchive;
 class ZipArchiveAdapter implements ZipInterface
 {
     /**
-     * @var ZipArchive
+     * @var \ZipArchive
      */
     protected $oZipArchive;
 
@@ -19,12 +19,12 @@ class ZipArchiveAdapter implements ZipInterface
     public function open($filename)
     {
         $this->filename = $filename;
-        $this->oZipArchive = new ZipArchive();
+        $this->oZipArchive = new \ZipArchive();
 
-        if ($this->oZipArchive->open($this->filename, ZipArchive::OVERWRITE) === true) {
+        if ($this->oZipArchive->open($this->filename, \ZipArchive::OVERWRITE) === true) {
             return $this;
         }
-        if ($this->oZipArchive->open($this->filename, ZipArchive::CREATE) === true) {
+        if ($this->oZipArchive->open($this->filename, \ZipArchive::CREATE) === true) {
             return $this;
         }
         throw new \Exception("Could not open $this->filename for writing.");

PhpOffice/Common/Autoloader.php

@@ -32,7 +32,7 @@ class Autoloader
      */
     public static function register(): void
     {
-        spl_autoload_register([new self(), 'autoload']);
+        \spl_autoload_register([new self(), 'autoload']);
     }
 
     /**
@@ -42,11 +42,11 @@ class Autoloader
      */
     public static function autoload(string $class): void
     {
-        $prefixLength = strlen(self::NAMESPACE_PREFIX);
+        $prefixLength = \strlen(self::NAMESPACE_PREFIX);
-        if (0 === strncmp(self::NAMESPACE_PREFIX, $class, $prefixLength)) {
+        if (0 === \strncmp(self::NAMESPACE_PREFIX, $class, $prefixLength)) {
-            $file = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, $prefixLength));
+            $file = \str_replace('\\', DIRECTORY_SEPARATOR, \substr($class, $prefixLength));
-            $file = realpath(__DIR__ . (empty($file) ? '' : DIRECTORY_SEPARATOR) . $file . '.php');
+            $file = \realpath(__DIR__ . (empty($file) ? '' : DIRECTORY_SEPARATOR) . $file . '.php');
-            if (file_exists($file)) {
+            if (\file_exists($file)) {
                 /** @noinspection PhpIncludeInspection Dynamic includes */
                 require_once $file;
             }

PhpOffice/Common/Drawing.php

@@ -30,7 +30,7 @@ class Drawing
      */
     public static function pixelsToEmu(float $pValue = 0): float
     {
-        return round($pValue * 9525);
+        return \round($pValue * 9525);
     }
 
     /**
@@ -46,7 +46,7 @@ class Drawing
             return 0;
         }
 
-        return (int) round($pValue / 9525);
+        return (int) \round($pValue / 9525);
     }
 
     /**
@@ -135,7 +135,7 @@ class Drawing
             return 0;
         }
 
-        return (int) round((($pValue / 2.54) * self::DPI_96));
+        return (int) \round((($pValue / 2.54) * self::DPI_96));
     }
 
     /**
@@ -147,7 +147,7 @@ class Drawing
      */
     public static function degreesToAngle(int $pValue = 0): int
     {
-        return (int) round($pValue * 60000);
+        return (int) \round($pValue * 60000);
     }
 
     /**
@@ -163,7 +163,7 @@ class Drawing
             return 0;
         }
 
-        return round($pValue / 60000);
+        return \round($pValue / 60000);
     }
 
     /**
@@ -243,7 +243,7 @@ class Drawing
             return 0;
         }
 
-        return round($pValue / 15);
+        return \round($pValue / 15);
     }
 
     /**
@@ -259,7 +259,7 @@ class Drawing
             return 0;
         }
 
-        return (int) round(($pValue / 0.75) / 9525);
+        return (int) \round(($pValue / 0.75) / 9525);
     }
 
     /**
@@ -272,20 +272,20 @@ class Drawing
     public static function htmlToRGB(string $pValue): ?array
     {
         if ($pValue[0] == '#') {
-            $pValue = substr($pValue, 1);
+            $pValue = \substr($pValue, 1);
         }
 
-        if (strlen($pValue) == 6) {
+        if (\strlen($pValue) == 6) {
             list($colorR, $colorG, $colorB) = [$pValue[0] . $pValue[1], $pValue[2] . $pValue[3], $pValue[4] . $pValue[5]];
-        } elseif (strlen($pValue) == 3) {
+        } elseif (\strlen($pValue) == 3) {
             list($colorR, $colorG, $colorB) = [$pValue[0] . $pValue[0], $pValue[1] . $pValue[1], $pValue[2] . $pValue[2]];
         } else {
             return null;
         }
 
-        $colorR = hexdec($colorR);
+        $colorR = \hexdec($colorR);
-        $colorG = hexdec($colorG);
+        $colorG = \hexdec($colorG);
-        $colorB = hexdec($colorB);
+        $colorB = \hexdec($colorB);
 
         return [$colorR, $colorG, $colorB];
     }

PhpOffice/Common/File.php

@@ -33,12 +33,12 @@ class File
         // Sick construction, but it seems that
         // file_exists returns strange values when
         // doing the original file_exists on ZIP archives...
-        if (strtolower(substr($pFilename, 0, 3)) == 'zip') {
+        if (\strtolower(\substr($pFilename, 0, 3)) == 'zip') {
             // Open ZIP file and verify if the file exists
-            $zipFile = substr($pFilename, 6, strpos($pFilename, '#') - 6);
+            $zipFile = \substr($pFilename, 6, \strpos($pFilename, '#') - 6);
-            $archiveFile = substr($pFilename, strpos($pFilename, '#') + 1);
+            $archiveFile = \substr($pFilename, \strpos($pFilename, '#') + 1);
 
-            $zip = new ZipArchive();
+            $zip = new \ZipArchive();
             if ($zip->open($zipFile) === true) {
                 $returnValue = ($zip->getFromName($archiveFile) !== false);
                 $zip->close();
@@ -50,7 +50,7 @@ class File
         }
 
         // Regular file_exists
-        return file_exists($pFilename);
+        return \file_exists($pFilename);
     }
 
     /**
@@ -65,12 +65,12 @@ class File
         if (!self::fileExists($pFilename)) {
             return null;
         }
-        if (strtolower(substr($pFilename, 0, 3)) == 'zip') {
+        if (\strtolower(\substr($pFilename, 0, 3)) == 'zip') {
             // Open ZIP file and verify if the file exists
-            $zipFile = substr($pFilename, 6, strpos($pFilename, '#') - 6);
+            $zipFile = \substr($pFilename, 6, \strpos($pFilename, '#') - 6);
-            $archiveFile = substr($pFilename, strpos($pFilename, '#') + 1);
+            $archiveFile = \substr($pFilename, \strpos($pFilename, '#') + 1);
 
-            $zip = new ZipArchive();
+            $zip = new \ZipArchive();
             if ($zip->open($zipFile) === true) {
                 $returnValue = $zip->getFromName($archiveFile);
                 $zip->close();
@@ -81,7 +81,7 @@ class File
             return null;
         }
         // Regular file contents
-        return file_get_contents($pFilename);
+        return \file_get_contents($pFilename);
     }
 
     /**
@@ -94,13 +94,13 @@ class File
     public static function realpath(string $pFilename): string
     {
         // Try using realpath()
-        $returnValue = realpath($pFilename);
+        $returnValue = \realpath($pFilename);
 
         // Found something?
         if (empty($returnValue)) {
-            $pathArray = explode('/', $pFilename);
+            $pathArray = \explode('/', $pFilename);
-            while (in_array('..', $pathArray) && $pathArray[0] != '..') {
+            while (\in_array('..', $pathArray) && $pathArray[0] != '..') {
-                $numPathArray = count($pathArray);
+                $numPathArray = \count($pathArray);
                 for ($i = 0; $i < $numPathArray; ++$i) {
                     if ($pathArray[$i] == '..' && $i > 0) {
                         unset($pathArray[$i]);
@@ -109,7 +109,7 @@ class File
                     }
                 }
             }
-            $returnValue = implode('/', $pathArray);
+            $returnValue = \implode('/', $pathArray);
         }
 
         // Return

PhpOffice/Common/Microsoft/OLERead.php

@@ -17,9 +17,11 @@
 
 namespace PhpOffice\Common\Microsoft;
 
+/*
 if (!defined('IDENTIFIER_OLE')) {
     define('IDENTIFIER_OLE', pack('CCCCCCCC', 0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1));
 }
+*/
 
 class OLERead
 {
@@ -29,7 +31,7 @@ class OLERead
     private $data = '';
 
     // OLE identifier
-    public const IDENTIFIER_OLE = IDENTIFIER_OLE;
+    public const IDENTIFIER_OLE = "\xD0\xCF\x11\xE0\xA1\xB1\x1A\xE1";
 
     // Size of a sector = 512 bytes
     public const BIG_BLOCK_SIZE = 0x200;
@@ -105,24 +107,26 @@ class OLERead
      *
      * @throws \Exception
      */
-    public function read(string $sFileName): void
+    public function read(string $sFileName): bool
     {
         // Check if file exists and is readable
-        if (!is_readable($sFileName)) {
+        if (!\is_readable($sFileName)) {
-            throw new \Exception('Could not open ' . $sFileName . ' for reading! File does not exist, or it is not readable.');
+            return false;
+            //throw new \Exception('Could not open ' . $sFileName . ' for reading! File does not exist, or it is not readable.');
         }
 
         // Get the file identifier
         // Don't bother reading the whole file until we know it's a valid OLE file
-        $this->data = file_get_contents($sFileName, false, null, 0, 8);
+        $this->data = \file_get_contents($sFileName, false, null, 0, 8);
 
         // Check OLE identifier
         if ($this->data != self::IDENTIFIER_OLE) {
-            throw new \Exception('The filename ' . $sFileName . ' is not recognised as an OLE file');
+            return false;
+            //throw new \Exception('The filename ' . $sFileName . ' is not recognized as an OLE file');
         }
 
         // Get the file data
-        $this->data = file_get_contents($sFileName);
+        $this->data = \file_get_contents($sFileName);
 
         // Total number of sectors used for the SAT
         $numBigBlkDepotBlks = self::getInt4d($this->data, self::NUM_BIG_BLOCK_DEPOT_BLOCKS_POS);
@@ -155,7 +159,7 @@ class OLERead
 
         for ($j = 0; $j < $numExtensionBlocks; ++$j) {
             $pos = ($extensionBlock + 1) * self::BIG_BLOCK_SIZE;
-            $blocksToRead = min($numBigBlkDepotBlks - $bbdBlocks, self::BIG_BLOCK_SIZE / 4 - 1);
+            $blocksToRead = \min($numBigBlkDepotBlks - $bbdBlocks, self::BIG_BLOCK_SIZE / 4 - 1);
 
             for ($i = $bbdBlocks; $i < $bbdBlocks + $blocksToRead; ++$i) {
                 $bigBlockDepotBlocks[$i] = self::getInt4d($this->data, $pos);
@@ -173,7 +177,7 @@ class OLERead
         for ($i = 0; $i < $numBigBlkDepotBlks; ++$i) {
             $pos = ($bigBlockDepotBlocks[$i] + 1) * self::BIG_BLOCK_SIZE;
 
-            $this->bigBlockChain .= substr($this->data, $pos, 4 * $bbs);
+            $this->bigBlockChain .= \substr($this->data, $pos, 4 * $bbs);
             $pos += 4 * $bbs;
         }
 
@@ -182,7 +186,7 @@ class OLERead
         while ($sbdBlock != -2) {
             $pos = ($sbdBlock + 1) * self::BIG_BLOCK_SIZE;
 
-            $this->smallBlockChain .= substr($this->data, $pos, 4 * $bbs);
+            $this->smallBlockChain .= \substr($this->data, $pos, 4 * $bbs);
             $pos += 4 * $bbs;
 
             $sbdBlock = self::getInt4d($this->bigBlockChain, $sbdBlock * 4);
@@ -193,6 +197,8 @@ class OLERead
         $this->entry = $this->readData($block);
 
         $this->readPropertySets();
+
+        return true;
     }
 
     /**
@@ -211,7 +217,7 @@ class OLERead
 
             while ($block != -2) {
                 $pos = $block * self::SMALL_BLOCK_SIZE;
-                $streamData .= substr($rootdata, $pos, self::SMALL_BLOCK_SIZE);
+                $streamData .= \substr($rootdata, $pos, self::SMALL_BLOCK_SIZE);
 
                 $block = self::getInt4d($this->smallBlockChain, $block * 4);
             }
@@ -232,7 +238,7 @@ class OLERead
 
         while ($block != -2) {
             $pos = ($block + 1) * self::BIG_BLOCK_SIZE;
-            $streamData .= substr($this->data, $pos, self::BIG_BLOCK_SIZE);
+            $streamData .= \substr($this->data, $pos, self::BIG_BLOCK_SIZE);
             $block = self::getInt4d($this->bigBlockChain, $block * 4);
         }
 
@@ -253,7 +259,7 @@ class OLERead
 
         while ($block != -2) {
             $pos = ($block + 1) * self::BIG_BLOCK_SIZE;
-            $data .= substr($this->data, $pos, self::BIG_BLOCK_SIZE);
+            $data .= \substr($this->data, $pos, self::BIG_BLOCK_SIZE);
             $block = self::getInt4d($this->bigBlockChain, $block * 4);
         }
 
@@ -268,16 +274,16 @@ class OLERead
         $offset = 0;
 
         // loop through entires, each entry is 128 bytes
-        $entryLen = strlen($this->entry);
+        $entryLen = \strlen($this->entry);
         while ($offset < $entryLen) {
             // entry data (128 bytes)
-            $data = substr($this->entry, $offset, self::PROPERTY_STORAGE_BLOCK_SIZE);
+            $data = \substr($this->entry, $offset, self::PROPERTY_STORAGE_BLOCK_SIZE);
 
             // size in bytes of name
-            $nameSize = ord($data[self::SIZE_OF_NAME_POS]) | (ord($data[self::SIZE_OF_NAME_POS + 1]) << 8);
+            $nameSize = \ord($data[self::SIZE_OF_NAME_POS]) | (\ord($data[self::SIZE_OF_NAME_POS + 1]) << 8);
 
             // type of entry
-            $type = ord($data[self::TYPE_POS]);
+            $type = \ord($data[self::TYPE_POS]);
 
             // sectorID of first sector or short sector, if this entry refers to a stream (the case with workbook)
             // sectorID of first sector of the short-stream container stream, if this entry is root entry
@@ -285,7 +291,7 @@ class OLERead
 
             $size = self::getInt4d($data, self::SIZE_POS);
 
-            $name = str_replace("\x00", '', substr($data, 0, $nameSize));
+            $name = \str_replace("\x00", '', \substr($data, 0, $nameSize));
             if ($size > 0) {
                 $this->props[] = [
                     'name' => $name,
@@ -295,34 +301,35 @@ class OLERead
                 ];
 
                 // tmp helper to simplify checks
-                $upName = strtoupper($name);
+                $upName = \strtoupper($name);
 
                 switch ($upName) {
                     case 'ROOT ENTRY':
                     case 'R':
-                        $this->rootEntry = count($this->props) - 1;
+                        $this->rootEntry = \count($this->props) - 1;
                         break;
-                    case chr(1) . 'COMPOBJ':
+                    case \chr(1) . 'COMPOBJ':
                         break;
-                    case chr(1) . 'OLE':
+                    case \chr(1) . 'OLE':
                         break;
-                    case chr(5) . 'SUMMARYINFORMATION':
+                    case \chr(5) . 'SUMMARYINFORMATION':
-                        $this->summaryInformation = count($this->props) - 1;
+                        $this->summaryInformation = \count($this->props) - 1;
                         break;
-                    case chr(5) . 'DOCUMENTSUMMARYINFORMATION':
+                    case \chr(5) . 'DOCUMENTSUMMARYINFORMATION':
-                        $this->docSummaryInfos = count($this->props) - 1;
+                        $this->docSummaryInfos = \count($this->props) - 1;
                         break;
                     case 'CURRENT USER':
-                        $this->currentUser = count($this->props) - 1;
+                        $this->currentUser = \count($this->props) - 1;
                         break;
                     case 'PICTURES':
-                        $this->pictures = count($this->props) - 1;
+                        $this->pictures = \count($this->props) - 1;
                         break;
                     case 'POWERPOINT DOCUMENT':
-                        $this->powerpointDocument = count($this->props) - 1;
+                        $this->powerpointDocument = \count($this->props) - 1;
                         break;
                     default:
-                        throw new \Exception('OLE Block Not defined: $upName : ' . $upName . ' - $name : "' . $name . '"');
+                        return;
+                        //throw new \Exception('OLE Block Not defined: $upName : ' . $upName . ' - $name : "' . $name . '"');
                 }
             }
 
@@ -343,14 +350,14 @@ class OLERead
         // FIX: represent numbers correctly on 64-bit system
         // http://sourceforge.net/tracker/index.php?func=detail&aid=1487372&group_id=99160&atid=623334
         // Hacked by Andreas Rehm 2006 to ensure correct result of the <<24 block on 32 and 64bit systems
-        $or24 = ord($data[$pos + 3]);
+        $or24 = \ord($data[$pos + 3]);
         if ($or24 >= 128) {
             // negative number
-            $ord24 = -abs((256 - $or24) << 24);
+            $ord24 = -\abs((256 - $or24) << 24);
         } else {
             $ord24 = ($or24 & 127) << 24;
         }
 
-        return ord($data[$pos]) | (ord($data[$pos + 1]) << 8) | (ord($data[$pos + 2]) << 16) | $ord24;
+        return \ord($data[$pos]) | (\ord($data[$pos + 1]) << 8) | (\ord($data[$pos + 2]) << 16) | $ord24;
     }
 }

PhpOffice/Common/Microsoft/PasswordEncoder.php

@@ -116,44 +116,44 @@ class PasswordEncoder
      */
     public static function hashPassword(string $password, string $algorithmName = self::ALGORITHM_SHA_1, string $salt = null, int $spinCount = 10000)
     {
-        $origEncoding = mb_internal_encoding();
+        $origEncoding = \mb_internal_encoding();
-        mb_internal_encoding('UTF-8');
+        \mb_internal_encoding('UTF-8');
 
-        $password = mb_substr($password, 0, min(self::$passwordMaxLength, mb_strlen($password)));
+        $password = \mb_substr($password, 0, \min(self::$passwordMaxLength, \mb_strlen($password)));
 
         //   Get the single-byte values by iterating through the Unicode characters of the truncated password.
         //   For each character, if the low byte is not equal to 0, take it. Otherwise, take the high byte.
-        $passUtf8 = mb_convert_encoding($password, 'UCS-2LE', 'UTF-8');
+        $passUtf8 = \mb_convert_encoding($password, 'UCS-2LE', 'UTF-8');
         $byteChars = [];
 
-        for ($i = 0; $i < mb_strlen($password); ++$i) {
+        for ($i = 0; $i < \mb_strlen($password); ++$i) {
-            $byteChars[$i] = ord(substr($passUtf8, $i * 2, 1));
+            $byteChars[$i] = \ord(\substr($passUtf8, $i * 2, 1));
 
             if ($byteChars[$i] == 0) {
-                $byteChars[$i] = ord(substr($passUtf8, $i * 2 + 1, 1));
+                $byteChars[$i] = \ord(\substr($passUtf8, $i * 2 + 1, 1));
             }
         }
 
         // build low-order word and hig-order word and combine them
         $combinedKey = self::buildCombinedKey($byteChars);
         // build reversed hexadecimal string
-        $hex = str_pad(strtoupper(dechex($combinedKey & 0xFFFFFFFF)), 8, '0', \STR_PAD_LEFT);
+        $hex = \str_pad(\strtoupper(\dechex($combinedKey & 0xFFFFFFFF)), 8, '0', \STR_PAD_LEFT);
         $reversedHex = $hex[6] . $hex[7] . $hex[4] . $hex[5] . $hex[2] . $hex[3] . $hex[0] . $hex[1];
 
-        $generatedKey = mb_convert_encoding($reversedHex, 'UCS-2LE', 'UTF-8');
+        $generatedKey = \mb_convert_encoding($reversedHex, 'UCS-2LE', 'UTF-8');
 
         // Implementation Notes List:
         //   Word requires that the initial hash of the password with the salt not be considered in the count.
         //   The initial hash of salt + key is not included in the iteration count.
         $algorithm = self::getAlgorithm($algorithmName);
-        $generatedKey = hash($algorithm, $salt . $generatedKey, true);
+        $generatedKey = \hash($algorithm, $salt . $generatedKey, true);
 
         for ($i = 0; $i < $spinCount; ++$i) {
-            $generatedKey = hash($algorithm, $generatedKey . pack('CCCC', $i, $i >> 8, $i >> 16, $i >> 24), true);
+            $generatedKey = \hash($algorithm, $generatedKey . \pack('CCCC', $i, $i >> 8, $i >> 16, $i >> 24), true);
         }
-        $generatedKey = base64_encode($generatedKey);
+        $generatedKey = \base64_encode($generatedKey);
 
-        mb_internal_encoding($origEncoding);
+        \mb_internal_encoding($origEncoding);
 
         return $generatedKey;
     }
@@ -196,7 +196,7 @@ class PasswordEncoder
      */
     private static function buildCombinedKey(array $byteChars): int
     {
-        $byteCharsLength = count($byteChars);
+        $byteCharsLength = \count($byteChars);
         // Compute the high-order word
         // Initialize from the initial code array (see above), depending on the passwords length.
         $highOrderWord = self::$initialCodeArray[$byteCharsLength - 1];
@@ -231,7 +231,7 @@ class PasswordEncoder
     }
 
     /**
-     * Simulate behaviour of (signed) int32
+     * Simulate behavior of (signed) int32
      *
      * @codeCoverageIgnore
      *

PhpOffice/Common/Text.php

@@ -36,8 +36,8 @@ class Text
     {
         for ($i = 0; $i <= 19; ++$i) {
             if ($i != 9 && $i != 10 && $i != 13) {
-                $find = '_x' . sprintf('%04s', strtoupper(dechex($i))) . '_';
+                $find = '_x' . \sprintf('%04s', \strtoupper(\dechex($i))) . '_';
-                $replace = chr($i);
+                $replace = \chr($i);
                 self::$controlCharacters[$find] = $replace;
             }
         }
@@ -64,7 +64,7 @@ class Text
             self::buildControlCharacters();
         }
 
-        return str_replace(array_values(self::$controlCharacters), array_keys(self::$controlCharacters), $value);
+        return \str_replace(\array_values(self::$controlCharacters), \array_keys(self::$controlCharacters), $value);
     }
 
     /**
@@ -77,7 +77,7 @@ class Text
      */
     public static function numberFormat(float $number, int $decimals): string
     {
-        return number_format($number, $decimals, '.', '');
+        return \number_format($number, $decimals, '.', '');
     }
 
     /**
@@ -92,16 +92,16 @@ class Text
     public static function chr(int $dec): string
     {
         if ($dec <= 0x7F) {
-            return chr($dec);
+            return \chr($dec);
         }
         if ($dec <= 0x7FF) {
-            return chr(($dec >> 6) + 192) . chr(($dec & 63) + 128);
+            return \chr(($dec >> 6) + 192) . \chr(($dec & 63) + 128);
         }
         if ($dec <= 0xFFFF) {
-            return chr(($dec >> 12) + 224) . chr((($dec >> 6) & 63) + 128) . chr(($dec & 63) + 128);
+            return \chr(($dec >> 12) + 224) . \chr((($dec >> 6) & 63) + 128) . \chr(($dec & 63) + 128);
         }
         if ($dec <= 0x1FFFFF) {
-            return chr(($dec >> 18) + 240) . chr((($dec >> 12) & 63) + 128) . chr((($dec >> 6) & 63) + 128) . chr(($dec & 63) + 128);
+            return \chr(($dec >> 18) + 240) . \chr((($dec >> 12) & 63) + 128) . \chr((($dec >> 6) & 63) + 128) . \chr(($dec & 63) + 128);
         }
 
         return '';
@@ -120,7 +120,7 @@ class Text
             self::buildControlCharacters();
         }
 
-        return str_replace(array_keys(self::$controlCharacters), array_values(self::$controlCharacters), $value);
+        return \str_replace(\array_keys(self::$controlCharacters), \array_values(self::$controlCharacters), $value);
     }
 
     /**
@@ -132,7 +132,7 @@ class Text
      */
     public static function isUTF8(string $value = ''): bool
     {
-        return is_string($value) && ($value === '' || preg_match('/^./su', $value) == 1);
+        return \is_string($value) && ($value === '' || \preg_match('/^./su', $value) == 1);
     }
 
     /**
@@ -144,8 +144,8 @@ class Text
      */
     public static function toUTF8(?string $value = ''): ?string
     {
-        if (!is_null($value) && !self::isUTF8($value)) {
+        if (!\is_null($value) && !self::isUTF8($value)) {
-            $value = utf8_encode($value);
+            $value = \utf8_encode($value);
         }
 
         return $value;
@@ -184,16 +184,16 @@ class Text
         $lookingFor = 1;
 
         // Gets unicode for each character
-        for ($i = 0; $i < strlen($text); ++$i) {
+        for ($i = 0; $i < \strlen($text); ++$i) {
-            $thisValue = ord($text[$i]);
+            $thisValue = \ord($text[$i]);
             if ($thisValue < 128) {
                 $unicode[] = $thisValue;
             } else {
-                if (count($values) == 0) {
+                if (\count($values) == 0) {
                     $lookingFor = $thisValue < 224 ? 2 : 3;
                 }
                 $values[] = $thisValue;
-                if (count($values) == $lookingFor) {
+                if (\count($values) == $lookingFor) {
                     if ($lookingFor == 3) {
                         $number = (($values[0] % 16) * 4096) + (($values[1] % 64) * 64) + ($values[2] % 64);
                     } else {
@@ -225,7 +225,7 @@ class Text
 
         foreach ($unicode as $value) {
             if ($value != 65279) {
-                $entities .= $value > 127 ? '\uc0{\u' . $value . '}' : chr($value);
+                $entities .= $value > 127 ? '\uc0{\u' . $value . '}' : \chr($value);
             }
         }
 
@@ -241,9 +241,9 @@ class Text
      */
     public static function removeUnderscorePrefix(?string $value): string
     {
-        if (!is_null($value)) {
+        if (!\is_null($value)) {
-            if (substr($value, 0, 1) == '_') {
+            if (\substr($value, 0, 1) == '_') {
-                $value = substr($value, 1);
+                $value = \substr($value, 1);
             }
         }
 

PhpOffice/Common/XMLReader.php

@@ -33,14 +33,14 @@ class XMLReader
     /**
      * DOMDocument object
      *
-     * @var DOMDocument
+     * @var \DOMDocument
      */
     private $dom = null;
 
     /**
      * DOMXpath object
      *
-     * @var DOMXpath
+     * @var \DOMXpath
      */
     private $xpath = null;
 
@@ -50,17 +50,17 @@ class XMLReader
      * @param string $zipFile
      * @param string $xmlFile
      *
-     * @return DOMDocument|false
+     * @return \DOMDocument|false
      *
      * @throws \Exception
      */
     public function getDomFromZip(string $zipFile, string $xmlFile)
     {
-        if (file_exists($zipFile) === false) {
+        if (\file_exists($zipFile) === false) {
             throw new \Exception('Cannot find archive file.');
         }
 
-        $zip = new ZipArchive();
+        $zip = new \ZipArchive();
         $zip->open($zipFile);
         $content = $zip->getFromName($xmlFile);
         $zip->close();
@@ -77,20 +77,20 @@ class XMLReader
      *
      * @param string $content
      *
-     * @return DOMDocument
+     * @return \DOMDocument
      */
     public function getDomFromString(string $content)
     {
         $originalLibXMLEntityValue = false;
         if (\PHP_VERSION_ID < 80000) {
-            $originalLibXMLEntityValue = libxml_disable_entity_loader(true);
+            $originalLibXMLEntityValue = \libxml_disable_entity_loader(true);
         }
 
-        $this->dom = new DOMDocument();
+        $this->dom = new \DOMDocument();
         $this->dom->loadXML($content);
 
         if (\PHP_VERSION_ID < 80000) {
-            libxml_disable_entity_loader($originalLibXMLEntityValue);
+            \libxml_disable_entity_loader($originalLibXMLEntityValue);
         }
 
         return $this->dom;
@@ -100,20 +100,20 @@ class XMLReader
      * Get elements
      *
      * @param string $path
-     * @param DOMElement $contextNode
+     * @param \DOMElement $contextNode
      *
-     * @return DOMNodeList<DOMElement>
+     * @return \DOMNodeList<\DOMElement>
      */
-    public function getElements(string $path, DOMElement $contextNode = null)
+    public function getElements(string $path, \DOMElement $contextNode = null)
     {
         if ($this->dom === null) {
-            return new DOMNodeList();
+            return new \DOMNodeList();
         }
         if ($this->xpath === null) {
-            $this->xpath = new DOMXpath($this->dom);
+            $this->xpath = new \DOMXpath($this->dom);
         }
 
-        if (is_null($contextNode)) {
+        if (\is_null($contextNode)) {
             return $this->xpath->query($path);
         }
 
@@ -136,7 +136,7 @@ class XMLReader
             throw new \InvalidArgumentException('Dom needs to be loaded before registering a namespace');
         }
         if ($this->xpath === null) {
-            $this->xpath = new DOMXpath($this->dom);
+            $this->xpath = new \DOMXpath($this->dom);
         }
 
         return $this->xpath->registerNamespace($prefix, $namespaceURI);
@@ -146,15 +146,15 @@ class XMLReader
      * Get element
      *
      * @param string $path
-     * @param DOMElement $contextNode
+     * @param \DOMElement $contextNode
      *
-     * @return DOMElement|null
+     * @return \DOMElement|null
      */
-    public function getElement($path, DOMElement $contextNode = null): ?DOMElement
+    public function getElement($path, \DOMElement $contextNode = null): ?\DOMElement
     {
         $elements = $this->getElements($path, $contextNode);
         if ($elements->length > 0) {
-            return $elements->item(0) instanceof DOMElement ? $elements->item(0) : null;
+            return $elements->item(0) instanceof \DOMElement ? $elements->item(0) : null;
         }
 
         return null;
@@ -164,18 +164,18 @@ class XMLReader
      * Get element attribute
      *
      * @param string $attribute
-     * @param DOMElement $contextNode
+     * @param \DOMElement $contextNode
      * @param string $path
      *
      * @return string|null
      */
-    public function getAttribute($attribute, DOMElement $contextNode = null, $path = null)
+    public function getAttribute($attribute, \DOMElement $contextNode = null, $path = null)
     {
         $return = null;
         if ($path !== null) {
             $elements = $this->getElements($path, $contextNode);
             if ($elements->length > 0) {
-                /** @var DOMElement $node Type hint */
+                /** @var \DOMElement $node Type hint */
                 $node = $elements->item(0);
                 $return = $node->getAttribute($attribute);
             }
@@ -192,11 +192,11 @@ class XMLReader
      * Get element value
      *
      * @param string $path
-     * @param DOMElement $contextNode
+     * @param \DOMElement $contextNode
      *
      * @return string|null
      */
-    public function getValue($path, DOMElement $contextNode = null)
+    public function getValue($path, \DOMElement $contextNode = null)
     {
         $elements = $this->getElements($path, $contextNode);
         if ($elements->length > 0) {
@@ -210,11 +210,11 @@ class XMLReader
      * Count elements
      *
      * @param string $path
-     * @param DOMElement $contextNode
+     * @param \DOMElement $contextNode
      *
      * @return int
      */
-    public function countElements($path, DOMElement $contextNode = null)
+    public function countElements($path, \DOMElement $contextNode = null)
     {
         $elements = $this->getElements($path, $contextNode);
 
@@ -225,11 +225,11 @@ class XMLReader
      * Element exists
      *
      * @param string $path
-     * @param DOMElement $contextNode
+     * @param \DOMElement $contextNode
      *
      * @return bool
      */
-    public function elementExists($path, DOMElement $contextNode = null)
+    public function elementExists($path, \DOMElement $contextNode = null)
     {
         return $this->getElements($path, $contextNode)->length > 0;
     }

PhpOffice/Common/XMLWriter.php

@@ -59,11 +59,11 @@ class XMLWriter extends \XMLWriter
         if ($pTemporaryStorage == self::STORAGE_MEMORY) {
             $this->openMemory();
         } else {
-            if ($pTemporaryStorageDir && !is_dir($pTemporaryStorageDir)) {
+            if ($pTemporaryStorageDir && !\is_dir($pTemporaryStorageDir)) {
-                $pTemporaryStorageDir = sys_get_temp_dir();
+                $pTemporaryStorageDir = \sys_get_temp_dir();
             }
             // Create temporary filename
-            $this->tempFileName = @tempnam($pTemporaryStorageDir, 'xml');
+            $this->tempFileName = @\tempnam($pTemporaryStorageDir, 'xml');
 
             // Open storage
             $this->openUri($this->tempFileName);
@@ -87,7 +87,7 @@ class XMLWriter extends \XMLWriter
         if (empty($this->tempFileName)) {
             return;
         }
-        if (PHP_OS != 'WINNT' && @unlink($this->tempFileName) === false) {
+        if (PHP_OS != 'WINNT' && @\unlink($this->tempFileName) === false) {
             throw new \Exception('The file ' . $this->tempFileName . ' could not be deleted.');
         }
     }
@@ -105,7 +105,7 @@ class XMLWriter extends \XMLWriter
 
         $this->flush();
 
-        return file_get_contents($this->tempFileName);
+        return \file_get_contents($this->tempFileName);
     }
 
     /**
@@ -124,7 +124,7 @@ class XMLWriter extends \XMLWriter
     public function writeElementBlock(string $element, $attributes, string $value = null)
     {
         $this->startElement($element);
-        if (!is_array($attributes)) {
+        if (!\is_array($attributes)) {
             $attributes = [$attributes => $value];
         }
         foreach ($attributes as $attribute => $value) {
@@ -146,7 +146,7 @@ class XMLWriter extends \XMLWriter
     public function writeElementIf(bool $condition, string $element, ?string $attribute = null, $value = null)
     {
         if ($condition) {
-            if (is_null($attribute)) {
+            if (\is_null($attribute)) {
                 $this->writeElement($element, $value);
             } else {
                 $this->startElement($element);
@@ -180,8 +180,8 @@ class XMLWriter extends \XMLWriter
      */
     public function writeAttribute($name, $value): bool
     {
-        if (is_float($value)) {
+        if (\is_float($value)) {
-            $value = json_encode($value);
+            $value = \json_encode($value);
         }
 
         return parent::writeAttribute($name, $value ?? '');

PhpOffice/PhpPresentation/AbstractShape.php

@@ -153,10 +153,10 @@ abstract class AbstractShape implements ComparableInterface
      */
     public function setContainer(ShapeContainerInterface $pValue = null, $pOverrideOld = false)
     {
-        if (is_null($this->container)) {
+        if (\is_null($this->container)) {
             // Add drawing to ShapeContainerInterface
             $this->container = $pValue;
-            if (!is_null($this->container)) {
+            if (!\is_null($this->container)) {
                 $this->container->getShapeCollection()->append($this);
             }
         } else {
@@ -345,7 +345,7 @@ abstract class AbstractShape implements ComparableInterface
      */
     public function hasHyperlink()
     {
-        return !is_null($this->hyperlink);
+        return !\is_null($this->hyperlink);
     }
 
     /**
@@ -353,7 +353,7 @@ abstract class AbstractShape implements ComparableInterface
      */
     public function getHyperlink(): Hyperlink
     {
-        if (is_null($this->hyperlink)) {
+        if (\is_null($this->hyperlink)) {
             $this->hyperlink = new Hyperlink();
         }
 
@@ -377,7 +377,7 @@ abstract class AbstractShape implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5((is_object($this->container) ? $this->container->getHashCode() : '') . $this->offsetX . $this->offsetY . $this->width . $this->height . $this->rotation . (is_null($this->getFill()) ? '' : $this->getFill()->getHashCode()) . (is_null($this->shadow) ? '' : $this->shadow->getHashCode()) . (is_null($this->hyperlink) ? '' : $this->hyperlink->getHashCode()) . __CLASS__);
+        return \md5((\is_object($this->container) ? $this->container->getHashCode() : '') . $this->offsetX . $this->offsetY . $this->width . $this->height . $this->rotation . (\is_null($this->getFill()) ? '' : $this->getFill()->getHashCode()) . (\is_null($this->shadow) ? '' : $this->shadow->getHashCode()) . (\is_null($this->hyperlink) ? '' : $this->hyperlink->getHashCode()) . __CLASS__);
     }
 
     /**
@@ -412,7 +412,7 @@ abstract class AbstractShape implements ComparableInterface
 
     public function isPlaceholder(): bool
     {
-        return !is_null($this->placeholder);
+        return !\is_null($this->placeholder);
     }
 
     public function getPlaceholder(): ?Placeholder

PhpOffice/PhpPresentation/Autoloader.php

@@ -33,7 +33,7 @@ class Autoloader
      */
     public static function register(): void
     {
-        spl_autoload_register([new self(), 'autoload']);
+        \spl_autoload_register([new self(), 'autoload']);
     }
 
     /**
@@ -41,14 +41,14 @@ class Autoloader
      */
     public static function autoload(string $class): void
     {
-        $prefixLength = strlen(self::NAMESPACE_PREFIX);
+        $prefixLength = \strlen(self::NAMESPACE_PREFIX);
-        if (0 === strncmp(self::NAMESPACE_PREFIX, $class, $prefixLength)) {
+        if (0 === \strncmp(self::NAMESPACE_PREFIX, $class, $prefixLength)) {
-            $file = str_replace('\\', DIRECTORY_SEPARATOR, substr($class, $prefixLength));
+            $file = \str_replace('\\', DIRECTORY_SEPARATOR, \substr($class, $prefixLength));
-            $file = realpath(__DIR__ . (empty($file) ? '' : DIRECTORY_SEPARATOR) . $file . '.php');
+            $file = \realpath(__DIR__ . (empty($file) ? '' : DIRECTORY_SEPARATOR) . $file . '.php');
             if (!$file) {
                 return;
             }
-            if (file_exists($file)) {
+            if (\file_exists($file)) {
                 /** @noinspection PhpIncludeInspection Dynamic includes */
                 require_once $file;
             }

PhpOffice/PhpPresentation/DocumentProperties.php

@@ -117,8 +117,8 @@ class DocumentProperties
         // Initialise values
         $this->creator = 'Unknown Creator';
         $this->lastModifiedBy = $this->creator;
-        $this->created = time();
+        $this->created = \time();
-        $this->modified = time();
+        $this->modified = \time();
         $this->title = 'Untitled Presentation';
         $this->subject = '';
         $this->description = '';
@@ -194,8 +194,8 @@ class DocumentProperties
      */
     public function setCreated($pValue = null)
     {
-        if (is_null($pValue)) {
+        if (\is_null($pValue)) {
-            $pValue = time();
+            $pValue = \time();
         }
         $this->created = $pValue;
 
@@ -221,8 +221,8 @@ class DocumentProperties
      */
     public function setModified($pValue = null)
     {
-        if (is_null($pValue)) {
+        if (\is_null($pValue)) {
-            $pValue = time();
+            $pValue = \time();
         }
         $this->modified = $pValue;
 
@@ -380,7 +380,7 @@ class DocumentProperties
      */
     public function getCustomProperties(): array
     {
-        return array_keys($this->customProperties);
+        return \array_keys($this->customProperties);
     }
 
     /**
@@ -443,18 +443,18 @@ class DocumentProperties
      */
     public function setCustomProperty(string $propertyName, $propertyValue = '', ?string $propertyType = null): self
     {
-        if (!in_array($propertyType, [
+        if (!\in_array($propertyType, [
             self::PROPERTY_TYPE_INTEGER,
             self::PROPERTY_TYPE_FLOAT,
             self::PROPERTY_TYPE_STRING,
             self::PROPERTY_TYPE_DATE,
             self::PROPERTY_TYPE_BOOLEAN,
         ])) {
-            if (is_float($propertyValue)) {
+            if (\is_float($propertyValue)) {
                 $propertyType = self::PROPERTY_TYPE_FLOAT;
-            } elseif (is_int($propertyValue)) {
+            } elseif (\is_int($propertyValue)) {
                 $propertyType = self::PROPERTY_TYPE_INTEGER;
-            } elseif (is_bool($propertyValue)) {
+            } elseif (\is_bool($propertyValue)) {
                 $propertyType = self::PROPERTY_TYPE_BOOLEAN;
             } else {
                 $propertyType = self::PROPERTY_TYPE_STRING;

PhpOffice/PhpPresentation/Exception/DirectoryNotFoundException.php

@@ -24,7 +24,7 @@ class DirectoryNotFoundException extends PhpPresentationException
 {
     public function __construct(string $path)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The directory %s doesn\'t exist',
             $path
         ));

PhpOffice/PhpPresentation/Exception/FileCopyException.php

@@ -24,7 +24,7 @@ class FileCopyException extends PhpPresentationException
 {
     public function __construct(string $source, string $destination)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The file %s can\'t be copied to %s',
             $source,
             $destination

PhpOffice/PhpPresentation/Exception/FileNotFoundException.php

@@ -24,7 +24,7 @@ class FileNotFoundException extends PhpPresentationException
 {
     public function __construct(string $path)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The file "%s" doesn\'t exist',
             $path
         ));

PhpOffice/PhpPresentation/Exception/FileRemoveException.php

@@ -24,7 +24,7 @@ class FileRemoveException extends PhpPresentationException
 {
     public function __construct(string $path)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The file %s can\'t be removed',
             $path
         ));

PhpOffice/PhpPresentation/Exception/InvalidClassException.php

@@ -24,7 +24,7 @@ class InvalidClassException extends PhpPresentationException
 {
     public function __construct(string $class, string $error)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The class %s is invalid (%s)',
             $class,
             $error

PhpOffice/PhpPresentation/Exception/InvalidFileFormatException.php

@@ -31,7 +31,7 @@ class InvalidFileFormatException extends PhpPresentationException
             $error = '(' . $error . ')';
         }
 
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The file %s is not in the format supported by %s%s%s',
             $path,
             $class,

PhpOffice/PhpPresentation/Exception/InvalidParameterException.php

@@ -24,7 +24,7 @@ class InvalidParameterException extends PhpPresentationException
 {
     public function __construct(string $parameter, string $value)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The parameter %s can\'t have the value "%s"',
             $parameter,
             $value

PhpOffice/PhpPresentation/Exception/OutOfBoundsException.php

@@ -24,7 +24,7 @@ class OutOfBoundsException extends PhpPresentationException
 {
     public function __construct(int $minBounds, ?int $maxBounds, int $expectedBounds)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The expected value (%d) is out of bounds (%d, %s)',
             $expectedBounds,
             $minBounds,

PhpOffice/PhpPresentation/Exception/PhpPresentationException.php

@@ -22,6 +22,6 @@ namespace PhpOffice\PhpPresentation\Exception;
 
 use Exception;
 
-class PhpPresentationException extends Exception
+class PhpPresentationException extends \Exception
 {
 }

PhpOffice/PhpPresentation/Exception/ShapeContainerAlreadyAssignedException.php

@@ -24,7 +24,7 @@ class ShapeContainerAlreadyAssignedException extends PhpPresentationException
 {
     public function __construct(string $class)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The shape %s has already a container assigned',
             $class
         ));

PhpOffice/PhpPresentation/Exception/UnauthorizedMimetypeException.php

@@ -28,10 +28,10 @@ class UnauthorizedMimetypeException extends PhpPresentationException
      */
     public function __construct(string $expectedMimetype, array $authorizedMimetypes)
     {
-        parent::__construct(sprintf(
+        parent::__construct(\sprintf(
             'The mime type %s is not found in autorized values (%s)',
             $expectedMimetype,
-            implode(', ', $authorizedMimetypes)
+            \implode(', ', $authorizedMimetypes)
         ));
     }
 }

PhpOffice/PhpPresentation/GeometryCalculator.php

@@ -37,7 +37,7 @@ class GeometryCalculator
     {
         $offsets = [self::X => 0, self::Y => 0];
 
-        if (null !== $container && 0 != count($container->getShapeCollection())) {
+        if (null !== $container && 0 != \count($container->getShapeCollection())) {
             $shapes = $container->getShapeCollection();
             if (null !== $shapes[0]) {
                 $offsets[self::X] = $shapes[0]->getOffsetX();
@@ -70,7 +70,7 @@ class GeometryCalculator
         /** @var array<string, int> $extents */
         $extents = [self::X => 0, self::Y => 0];
 
-        if (null !== $container && 0 != count($container->getShapeCollection())) {
+        if (null !== $container && 0 != \count($container->getShapeCollection())) {
             $shapes = $container->getShapeCollection();
             if (null !== $shapes[0]) {
                 $extents[self::X] = (int) ($shapes[0]->getOffsetX() + $shapes[0]->getWidth());

PhpOffice/PhpPresentation/HashTable.php

@@ -78,7 +78,7 @@ class HashTable
         // Add value
         if (!isset($this->items[$hashCode])) {
             $this->items[$hashCode] = $pSource;
-            $index = count($this->items) - 1;
+            $index = \count($this->items) - 1;
             $this->keyMap[$index] = $hashCode;
             $pSource->setHashIndex($index);
         } else {
@@ -106,7 +106,7 @@ class HashTable
                     $deleteKey = $key;
                 }
             }
-            unset($this->keyMap[count($this->keyMap) - 1]);
+            unset($this->keyMap[\count($this->keyMap) - 1]);
         }
     }
 
@@ -124,7 +124,7 @@ class HashTable
      */
     public function count(): int
     {
-        return count($this->items);
+        return \count($this->items);
     }
 
     /**
@@ -134,7 +134,7 @@ class HashTable
      */
     public function getIndexForHashCode(string $pHashCode = ''): int
     {
-        $index = array_search($pHashCode, $this->keyMap);
+        $index = \array_search($pHashCode, $this->keyMap);
 
         return false === $index ? -1 : $index;
     }

PhpOffice/PhpPresentation/IOFactory.php

@@ -94,13 +94,13 @@ class IOFactory
      */
     private static function loadClass(string $class, string $type, PhpPresentation $phpPresentation = null)
     {
-        if (!class_exists($class)) {
+        if (!\class_exists($class)) {
             throw new InvalidClassException($class, $type . ': The class doesn\'t exist');
         }
         if (!self::isConcreteClass($class)) {
             throw new InvalidClassException($class, $type . ': The class is an abstract class or an interface');
         }
-        if (is_null($phpPresentation)) {
+        if (\is_null($phpPresentation)) {
             return new $class();
         }
 
@@ -112,7 +112,7 @@ class IOFactory
      */
     private static function isConcreteClass(string $class): bool
     {
-        $reflection = new ReflectionClass($class);
+        $reflection = new \ReflectionClass($class);
 
         return !$reflection->isAbstract() && !$reflection->isInterface();
     }

PhpOffice/PhpPresentation/PhpPresentation.php

@@ -68,7 +68,7 @@ class PhpPresentation
     /**
      * Collection of Master Slides.
      *
-     * @var array<int, SlideMaster>|ArrayObject<int, SlideMaster>
+     * @var array<int, SlideMaster>|\ArrayObject<int, SlideMaster>
      */
     protected $slideMasters;
 
@@ -184,10 +184,10 @@ class PhpPresentation
      */
     public function removeSlideByIndex(int $index = 0): self
     {
-        if ($index > count($this->slideCollection) - 1) {
+        if ($index > \count($this->slideCollection) - 1) {
-            throw new OutOfBoundsException(0, count($this->slideCollection) - 1, $index);
+            throw new OutOfBoundsException(0, \count($this->slideCollection) - 1, $index);
         }
-        array_splice($this->slideCollection, $index, 1);
+        \array_splice($this->slideCollection, $index, 1);
 
         return $this;
     }
@@ -201,8 +201,8 @@ class PhpPresentation
      */
     public function getSlide(int $index = 0): Slide
     {
-        if ($index > count($this->slideCollection) - 1) {
+        if ($index > \count($this->slideCollection) - 1) {
-            throw new OutOfBoundsException(0, count($this->slideCollection) - 1, $index);
+            throw new OutOfBoundsException(0, \count($this->slideCollection) - 1, $index);
         }
 
         return $this->slideCollection[$index];
@@ -240,7 +240,7 @@ class PhpPresentation
      */
     public function getSlideCount(): int
     {
-        return count($this->slideCollection);
+        return \count($this->slideCollection);
     }
 
     /**
@@ -262,8 +262,8 @@ class PhpPresentation
      */
     public function setActiveSlideIndex(int $index = 0): Slide
     {
-        if ($index > count($this->slideCollection) - 1) {
+        if ($index > \count($this->slideCollection) - 1) {
-            throw new OutOfBoundsException(0, count($this->slideCollection) - 1, $index);
+            throw new OutOfBoundsException(0, \count($this->slideCollection) - 1, $index);
         }
         $this->activeSlideIndex = $index;
 
@@ -320,7 +320,7 @@ class PhpPresentation
     {
         $copied = clone $this;
 
-        $slideCount = count($this->slideCollection);
+        $slideCount = \count($this->slideCollection);
         for ($i = 0; $i < $slideCount; ++$i) {
             $this->slideCollection[$i] = $this->slideCollection[$i]->copy();
             $this->slideCollection[$i]->rebindParent($this);
@@ -330,7 +330,7 @@ class PhpPresentation
     }
 
     /**
-     * @return array<int, Slide\SlideMaster>|ArrayObject<int, Slide\SlideMaster>
+     * @return array<int, Slide\SlideMaster>|\ArrayObject<int, Slide\SlideMaster>
      */
     public function getAllMasterSlides()
     {
@@ -338,11 +338,11 @@ class PhpPresentation
     }
 
     /**
-     * @param array<int, Slide\SlideMaster>|ArrayObject<int, Slide\SlideMaster> $slideMasters
+     * @param array<int, Slide\SlideMaster>|\ArrayObject<int, Slide\SlideMaster> $slideMasters
      */
     public function setAllMasterSlides($slideMasters = []): self
     {
-        if ($slideMasters instanceof ArrayObject || is_array($slideMasters)) {
+        if ($slideMasters instanceof \ArrayObject || \is_array($slideMasters)) {
             $this->slideMasters = $slideMasters;
         }
 

PhpOffice/PhpPresentation/PresentationProperties.php

@@ -128,7 +128,7 @@ class PresentationProperties
      */
     public function setThumbnailPath(string $path = ''): self
     {
-        if (file_exists($path)) {
+        if (\file_exists($path)) {
             $this->thumbnail = $path;
         }
 
@@ -180,7 +180,7 @@ class PresentationProperties
      */
     public function setLastView(string $value = self::VIEW_SLIDE): self
     {
-        if (in_array($value, $this->arrayView)) {
+        if (\in_array($value, $this->arrayView)) {
             $this->lastView = $value;
         }
 
@@ -222,7 +222,7 @@ class PresentationProperties
      */
     public function setSlideshowType(string $value = self::SLIDESHOW_TYPE_PRESENT): self
     {
-        if (in_array($value, $this->arraySlideshowTypes)) {
+        if (\in_array($value, $this->arraySlideshowTypes)) {
             $this->slideshowType = $value;
         }
 

PhpOffice/PhpPresentation/Reader/ODPresentation.php

@@ -92,16 +92,16 @@ class ODPresentation implements ReaderInterface
     public function fileSupportsUnserializePhpPresentation(string $pFilename = ''): bool
     {
         // Check if file exists
-        if (!file_exists($pFilename)) {
+        if (!\file_exists($pFilename)) {
             throw new FileNotFoundException($pFilename);
         }
 
-        $oZip = new ZipArchive();
+        $oZip = new \ZipArchive();
         // Is it a zip ?
         if (true === $oZip->open($pFilename)) {
             // Is it an OpenXML Document ?
             // Is it a Presentation ?
-            if (is_array($oZip->statName('META-INF/manifest.xml')) && is_array($oZip->statName('mimetype')) && 'application/vnd.oasis.opendocument.presentation' == $oZip->getFromName('mimetype')) {
+            if (\is_array($oZip->statName('META-INF/manifest.xml')) && \is_array($oZip->statName('mimetype')) && 'application/vnd.oasis.opendocument.presentation' == $oZip->getFromName('mimetype')) {
                 return true;
             }
         }
@@ -136,7 +136,7 @@ class ODPresentation implements ReaderInterface
         $this->oPhpPresentation = new PhpPresentation();
         $this->oPhpPresentation->removeSlideByIndex();
 
-        $this->oZip = new ZipArchive();
+        $this->oZip = new \ZipArchive();
         $this->oZip->open($pFilename);
 
         $this->oXMLReader = new XMLReader();
@@ -174,12 +174,12 @@ class ODPresentation implements ReaderInterface
         $properties = $this->oPhpPresentation->getDocumentProperties();
         foreach ($arrayProperties as $path => $property) {
             $oElement = $this->oXMLReader->getElement($path);
-            if ($oElement instanceof DOMElement) {
+            if ($oElement instanceof \DOMElement) {
                 $value = $oElement->nodeValue;
-                if (in_array($property, ['setCreated', 'setModified'])) {
+                if (\in_array($property, ['setCreated', 'setModified'])) {
-                    $dateTime = DateTime::createFromFormat(DateTime::W3C, $value);
+                    $dateTime = \DateTime::createFromFormat(\DateTime::W3C, $value);
                     if (!$dateTime) {
-                        $dateTime = new DateTime();
+                        $dateTime = new \DateTime();
                     }
                     $value = $dateTime->getTimestamp();
                 }
@@ -188,7 +188,7 @@ class ODPresentation implements ReaderInterface
         }
 
         foreach ($this->oXMLReader->getElements('/office:document-meta/office:meta/meta:user-defined') as $element) {
-            if (!($element instanceof DOMElement)
+            if (!($element instanceof \DOMElement)
                 || !$element->hasAttribute('meta:name')) {
                 continue;
             }
@@ -200,7 +200,7 @@ class ODPresentation implements ReaderInterface
                     $propertyType = DocumentProperties::PROPERTY_TYPE_BOOLEAN;
                     break;
                 case 'float':
-                    $propertyType = filter_var($propertyValue, FILTER_VALIDATE_INT) === false
+                    $propertyType = \filter_var($propertyValue, FILTER_VALIDATE_INT) === false
                         ? DocumentProperties::PROPERTY_TYPE_FLOAT
                         : DocumentProperties::PROPERTY_TYPE_INTEGER;
                     break;
@@ -222,12 +222,12 @@ class ODPresentation implements ReaderInterface
     protected function loadSlides(): void
     {
         foreach ($this->oXMLReader->getElements('/office:document-content/office:automatic-styles/*') as $oElement) {
-            if ($oElement instanceof DOMElement && $oElement->hasAttribute('style:name')) {
+            if ($oElement instanceof \DOMElement && $oElement->hasAttribute('style:name')) {
                 $this->loadStyle($oElement);
             }
         }
         foreach ($this->oXMLReader->getElements('/office:document-content/office:body/office:presentation/draw:page') as $oElement) {
-            if ($oElement instanceof DOMElement && 'draw:page' == $oElement->nodeName) {
+            if ($oElement instanceof \DOMElement && 'draw:page' == $oElement->nodeName) {
                 $this->loadSlide($oElement);
             }
         }
@@ -236,7 +236,7 @@ class ODPresentation implements ReaderInterface
     protected function loadPresentationProperties(): void
     {
         $element = $this->oXMLReader->getElement('/office:document-content/office:body/office:presentation/presentation:settings');
-        if ($element instanceof DOMElement) {
+        if ($element instanceof \DOMElement) {
             if ($element->getAttribute('presentation:full-screen') === 'false') {
                 $this->oPhpPresentation->getPresentationProperties()->setSlideshowType(PresentationProperties::SLIDESHOW_TYPE_BROWSE);
             }
@@ -246,26 +246,26 @@ class ODPresentation implements ReaderInterface
     /**
      * Extract style
      */
-    protected function loadStyle(DOMElement $nodeStyle): bool
+    protected function loadStyle(\DOMElement $nodeStyle): bool
     {
         $keyStyle = $nodeStyle->getAttribute('style:name');
 
         $nodeDrawingPageProps = $this->oXMLReader->getElement('style:drawing-page-properties', $nodeStyle);
-        if ($nodeDrawingPageProps instanceof DOMElement) {
+        if ($nodeDrawingPageProps instanceof \DOMElement) {
             // Read Background Color
             if ($nodeDrawingPageProps->hasAttribute('draw:fill-color') && 'solid' == $nodeDrawingPageProps->getAttribute('draw:fill')) {
                 $oBackground = new \PhpOffice\PhpPresentation\Slide\Background\Color();
                 $oColor = new Color();
-                $oColor->setRGB(substr($nodeDrawingPageProps->getAttribute('draw:fill-color'), -6));
+                $oColor->setRGB(\substr($nodeDrawingPageProps->getAttribute('draw:fill-color'), -6));
                 $oBackground->setColor($oColor);
             }
             // Read Background Image
             if ('bitmap' == $nodeDrawingPageProps->getAttribute('draw:fill') && $nodeDrawingPageProps->hasAttribute('draw:fill-image-name')) {
                 $nameStyle = $nodeDrawingPageProps->getAttribute('draw:fill-image-name');
                 if (!empty($this->arrayCommonStyles[$nameStyle]) && 'image' == $this->arrayCommonStyles[$nameStyle]['type'] && !empty($this->arrayCommonStyles[$nameStyle]['path'])) {
-                    $tmpBkgImg = tempnam(sys_get_temp_dir(), 'PhpPresentationReaderODPBkg');
+                    $tmpBkgImg = \tempnam(\sys_get_temp_dir(), 'PhpPresentationReaderODPBkg');
                     $contentImg = $this->oZip->getFromName($this->arrayCommonStyles[$nameStyle]['path']);
-                    file_put_contents($tmpBkgImg, $contentImg);
+                    \file_put_contents($tmpBkgImg, $contentImg);
 
                     $oBackground = new Image();
                     $oBackground->setPath($tmpBkgImg);
@@ -274,27 +274,27 @@ class ODPresentation implements ReaderInterface
         }
 
         $nodeGraphicProps = $this->oXMLReader->getElement('style:graphic-properties', $nodeStyle);
-        if ($nodeGraphicProps instanceof DOMElement) {
+        if ($nodeGraphicProps instanceof \DOMElement) {
             // Read Shadow
             if ($nodeGraphicProps->hasAttribute('draw:shadow') && 'visible' == $nodeGraphicProps->getAttribute('draw:shadow')) {
                 $oShadow = new Shadow();
                 $oShadow->setVisible(true);
                 if ($nodeGraphicProps->hasAttribute('draw:shadow-color')) {
-                    $oShadow->getColor()->setRGB(substr($nodeGraphicProps->getAttribute('draw:shadow-color'), -6));
+                    $oShadow->getColor()->setRGB(\substr($nodeGraphicProps->getAttribute('draw:shadow-color'), -6));
                 }
                 if ($nodeGraphicProps->hasAttribute('draw:shadow-opacity')) {
-                    $oShadow->setAlpha(100 - (int) substr($nodeGraphicProps->getAttribute('draw:shadow-opacity'), 0, -1));
+                    $oShadow->setAlpha(100 - (int) \substr($nodeGraphicProps->getAttribute('draw:shadow-opacity'), 0, -1));
                 }
                 if ($nodeGraphicProps->hasAttribute('draw:shadow-offset-x') && $nodeGraphicProps->hasAttribute('draw:shadow-offset-y')) {
-                    $offsetX = (float) substr($nodeGraphicProps->getAttribute('draw:shadow-offset-x'), 0, -2);
+                    $offsetX = (float) \substr($nodeGraphicProps->getAttribute('draw:shadow-offset-x'), 0, -2);
-                    $offsetY = (float) substr($nodeGraphicProps->getAttribute('draw:shadow-offset-y'), 0, -2);
+                    $offsetY = (float) \substr($nodeGraphicProps->getAttribute('draw:shadow-offset-y'), 0, -2);
                     $distance = 0;
                     if (0 != $offsetX) {
                         $distance = ($offsetX < 0 ? $offsetX * -1 : $offsetX);
                     } elseif (0 != $offsetY) {
                         $distance = ($offsetY < 0 ? $offsetY * -1 : $offsetY);
                     }
-                    $oShadow->setDirection((int) rad2deg(atan2($offsetY, $offsetX)));
+                    $oShadow->setDirection((int) \rad2deg(\atan2($offsetY, $offsetX)));
                     $oShadow->setDistance(CommonDrawing::centimetersToPixels($distance));
                 }
             }
@@ -312,7 +312,7 @@ class ODPresentation implements ReaderInterface
                         $oFill->setFillType(Fill::FILL_SOLID);
                         if ($nodeGraphicProps->hasAttribute('draw:fill-color')) {
                             $oColor = new Color();
-                            $oColor->setRGB(substr($nodeGraphicProps->getAttribute('draw:fill-color'), 1));
+                            $oColor->setRGB(\substr($nodeGraphicProps->getAttribute('draw:fill-color'), 1));
                             $oFill->setStartColor($oColor);
                         }
                         break;
@@ -321,10 +321,10 @@ class ODPresentation implements ReaderInterface
         }
 
         $nodeTextProperties = $this->oXMLReader->getElement('style:text-properties', $nodeStyle);
-        if ($nodeTextProperties instanceof DOMElement) {
+        if ($nodeTextProperties instanceof \DOMElement) {
             $oFont = new Font();
             if ($nodeTextProperties->hasAttribute('fo:color')) {
-                $oFont->getColor()->setRGB(substr($nodeTextProperties->getAttribute('fo:color'), -6));
+                $oFont->getColor()->setRGB(\substr($nodeTextProperties->getAttribute('fo:color'), -6));
             }
             // Font Latin
             if ($nodeTextProperties->hasAttribute('fo:font-family')) {
@@ -339,7 +339,7 @@ class ODPresentation implements ReaderInterface
             }
             if ($nodeTextProperties->hasAttribute('fo:font-size')) {
                 $oFont
-                    ->setSize((int) substr($nodeTextProperties->getAttribute('fo:font-size'), 0, -2))
+                    ->setSize((int) \substr($nodeTextProperties->getAttribute('fo:font-size'), 0, -2))
                     ->setFormat(Font::FORMAT_LATIN);
             }
             // Font East Asian
@@ -355,7 +355,7 @@ class ODPresentation implements ReaderInterface
             }
             if ($nodeTextProperties->hasAttribute('style:font-size-asian')) {
                 $oFont
-                    ->setSize((int) substr($nodeTextProperties->getAttribute('style:font-size-asian'), 0, -2))
+                    ->setSize((int) \substr($nodeTextProperties->getAttribute('style:font-size-asian'), 0, -2))
                     ->setFormat(Font::FORMAT_EAST_ASIAN);
             }
             // Font Complex Script
@@ -371,7 +371,7 @@ class ODPresentation implements ReaderInterface
             }
             if ($nodeTextProperties->hasAttribute('style:font-size-complex')) {
                 $oFont
-                    ->setSize((int) substr($nodeTextProperties->getAttribute('style:font-size-complex'), 0, -2))
+                    ->setSize((int) \substr($nodeTextProperties->getAttribute('style:font-size-complex'), 0, -2))
                     ->setFormat(Font::FORMAT_COMPLEX_SCRIPT);
             }
             if ($nodeTextProperties->hasAttribute('style:script-type')) {
@@ -390,18 +390,18 @@ class ODPresentation implements ReaderInterface
         }
 
         $nodeParagraphProps = $this->oXMLReader->getElement('style:paragraph-properties', $nodeStyle);
-        if ($nodeParagraphProps instanceof DOMElement) {
+        if ($nodeParagraphProps instanceof \DOMElement) {
             if ($nodeParagraphProps->hasAttribute('fo:line-height')) {
                 $lineHeightUnit = $this->getExpressionUnit($nodeParagraphProps->getAttribute('fo:margin-bottom'));
                 $lineSpacingMode = $lineHeightUnit == '%' ? Paragraph::LINE_SPACING_MODE_PERCENT : Paragraph::LINE_SPACING_MODE_POINT;
                 $lineSpacing = $this->getExpressionValue($nodeParagraphProps->getAttribute('fo:margin-bottom'));
             }
             if ($nodeParagraphProps->hasAttribute('fo:margin-bottom')) {
-                $spacingAfter = (float) substr($nodeParagraphProps->getAttribute('fo:margin-bottom'), 0, -2);
+                $spacingAfter = (float) \substr($nodeParagraphProps->getAttribute('fo:margin-bottom'), 0, -2);
                 $spacingAfter = CommonDrawing::centimetersToPoints($spacingAfter);
             }
             if ($nodeParagraphProps->hasAttribute('fo:margin-top')) {
-                $spacingBefore = (float) substr($nodeParagraphProps->getAttribute('fo:margin-top'), 0, -2);
+                $spacingBefore = (float) \substr($nodeParagraphProps->getAttribute('fo:margin-top'), 0, -2);
                 $spacingBefore = CommonDrawing::centimetersToPoints($spacingBefore);
             }
             $oAlignment = new Alignment();
@@ -434,7 +434,7 @@ class ODPresentation implements ReaderInterface
                 $oAlignment = new Alignment();
                 $oBullet = new Bullet();
                 $oBullet->setBulletType(Bullet::TYPE_NONE);
-                if ($oNodeListLevel instanceof DOMElement) {
+                if ($oNodeListLevel instanceof \DOMElement) {
                     if ($oNodeListLevel->hasAttribute('text:level')) {
                         $oAlignment->setLevel((int) $oNodeListLevel->getAttribute('text:level') - 1);
                     }
@@ -444,19 +444,19 @@ class ODPresentation implements ReaderInterface
                     }
 
                     $oNodeListProperties = $this->oXMLReader->getElement('style:list-level-properties', $oNodeListLevel);
-                    if ($oNodeListProperties instanceof DOMElement) {
+                    if ($oNodeListProperties instanceof \DOMElement) {
                         if ($oNodeListProperties->hasAttribute('text:min-label-width')) {
-                            $oAlignment->setIndent(CommonDrawing::centimetersToPixels((float) substr($oNodeListProperties->getAttribute('text:min-label-width'), 0, -2)));
+                            $oAlignment->setIndent(CommonDrawing::centimetersToPixels((float) \substr($oNodeListProperties->getAttribute('text:min-label-width'), 0, -2)));
                         }
                         if ($oNodeListProperties->hasAttribute('text:space-before')) {
-                            $iSpaceBefore = CommonDrawing::centimetersToPixels((float) substr($oNodeListProperties->getAttribute('text:space-before'), 0, -2));
+                            $iSpaceBefore = CommonDrawing::centimetersToPixels((float) \substr($oNodeListProperties->getAttribute('text:space-before'), 0, -2));
                             $iMarginLeft = $iSpaceBefore + $oAlignment->getIndent();
                             $oAlignment->setMarginLeft($iMarginLeft);
                         }
                     }
 
                     $oNodeTextProperties = $this->oXMLReader->getElement('style:text-properties', $oNodeListLevel);
-                    if ($oNodeTextProperties instanceof DOMElement) {
+                    if ($oNodeTextProperties instanceof \DOMElement) {
                         if ($oNodeTextProperties->hasAttribute('fo:font-family')) {
                             $oBullet->setBulletFont($oNodeTextProperties->getAttribute('fo:font-family'));
                         }
@@ -489,7 +489,7 @@ class ODPresentation implements ReaderInterface
     /**
      * Read Slide
      */
-    protected function loadSlide(DOMElement $nodeSlide): bool
+    protected function loadSlide(\DOMElement $nodeSlide): bool
     {
         // Core
         $this->oPhpPresentation->createSlide();
@@ -504,7 +504,7 @@ class ODPresentation implements ReaderInterface
             }
         }
         foreach ($this->oXMLReader->getElements('draw:frame', $nodeSlide) as $oNodeFrame) {
-            if ($oNodeFrame instanceof DOMElement) {
+            if ($oNodeFrame instanceof \DOMElement) {
                 if ($this->oXMLReader->getElement('draw:image', $oNodeFrame)) {
                     $this->loadShapeDrawing($oNodeFrame);
                     continue;
@@ -522,20 +522,20 @@ class ODPresentation implements ReaderInterface
     /**
      * Read Shape Drawing
      */
-    protected function loadShapeDrawing(DOMElement $oNodeFrame): void
+    protected function loadShapeDrawing(\DOMElement $oNodeFrame): void
     {
         // Core
         $mimetype = '';
 
         $oNodeImage = $this->oXMLReader->getElement('draw:image', $oNodeFrame);
-        if ($oNodeImage instanceof DOMElement) {
+        if ($oNodeImage instanceof \DOMElement) {
             if ($oNodeImage->hasAttribute('loext:mime-type')) {
                 $mimetype = $oNodeImage->getAttribute('loext:mime-type');
             }
             if ($oNodeImage->hasAttribute('xlink:href')) {
                 $sFilename = $oNodeImage->getAttribute('xlink:href');
                 // svm = StarView Metafile
-                if ('svm' == pathinfo($sFilename, PATHINFO_EXTENSION)) {
+                if ('svm' == \pathinfo($sFilename, PATHINFO_EXTENSION)) {
                     return;
                 }
                 $imageFile = $this->oZip->getFromName($sFilename);
@@ -549,21 +549,21 @@ class ODPresentation implements ReaderInterface
         // Contents of file
         if (empty($mimetype)) {
             $shape = new Gd();
-            $shape->setImageResource(imagecreatefromstring($imageFile));
+            $shape->setImageResource(\imagecreatefromstring($imageFile));
         } else {
             $shape = new Base64();
-            $shape->setData('data:' . $mimetype . ';base64,' . base64_encode($imageFile));
+            $shape->setData('data:' . $mimetype . ';base64,' . \base64_encode($imageFile));
         }
 
         $shape->getShadow()->setVisible(false);
         $shape->setName($oNodeFrame->hasAttribute('draw:name') ? $oNodeFrame->getAttribute('draw:name') : '');
         $shape->setDescription($oNodeFrame->hasAttribute('draw:name') ? $oNodeFrame->getAttribute('draw:name') : '');
         $shape->setResizeProportional(false);
-        $shape->setWidth($oNodeFrame->hasAttribute('svg:width') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:width'), 0, -2)) : 0);
+        $shape->setWidth($oNodeFrame->hasAttribute('svg:width') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:width'), 0, -2)) : 0);
-        $shape->setHeight($oNodeFrame->hasAttribute('svg:height') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:height'), 0, -2)) : 0);
+        $shape->setHeight($oNodeFrame->hasAttribute('svg:height') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:height'), 0, -2)) : 0);
         $shape->setResizeProportional(true);
-        $shape->setOffsetX($oNodeFrame->hasAttribute('svg:x') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:x'), 0, -2)) : 0);
+        $shape->setOffsetX($oNodeFrame->hasAttribute('svg:x') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:x'), 0, -2)) : 0);
-        $shape->setOffsetY($oNodeFrame->hasAttribute('svg:y') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:y'), 0, -2)) : 0);
+        $shape->setOffsetY($oNodeFrame->hasAttribute('svg:y') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:y'), 0, -2)) : 0);
 
         if ($oNodeFrame->hasAttribute('draw:style-name')) {
             $keyStyle = $oNodeFrame->getAttribute('draw:style-name');
@@ -579,20 +579,20 @@ class ODPresentation implements ReaderInterface
     /**
      * Read Shape RichText
      */
-    protected function loadShapeRichText(DOMElement $oNodeFrame): void
+    protected function loadShapeRichText(\DOMElement $oNodeFrame): void
     {
         // Core
         $oShape = $this->oPhpPresentation->getActiveSlide()->createRichTextShape();
         $oShape->setParagraphs([]);
 
-        $oShape->setWidth($oNodeFrame->hasAttribute('svg:width') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:width'), 0, -2)) : 0);
+        $oShape->setWidth($oNodeFrame->hasAttribute('svg:width') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:width'), 0, -2)) : 0);
-        $oShape->setHeight($oNodeFrame->hasAttribute('svg:height') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:height'), 0, -2)) : 0);
+        $oShape->setHeight($oNodeFrame->hasAttribute('svg:height') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:height'), 0, -2)) : 0);
-        $oShape->setOffsetX($oNodeFrame->hasAttribute('svg:x') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:x'), 0, -2)) : 0);
+        $oShape->setOffsetX($oNodeFrame->hasAttribute('svg:x') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:x'), 0, -2)) : 0);
-        $oShape->setOffsetY($oNodeFrame->hasAttribute('svg:y') ? CommonDrawing::centimetersToPixels((float) substr($oNodeFrame->getAttribute('svg:y'), 0, -2)) : 0);
+        $oShape->setOffsetY($oNodeFrame->hasAttribute('svg:y') ? CommonDrawing::centimetersToPixels((float) \substr($oNodeFrame->getAttribute('svg:y'), 0, -2)) : 0);
 
         foreach ($this->oXMLReader->getElements('draw:text-box/*', $oNodeFrame) as $oNodeParagraph) {
             $this->levelParagraph = 0;
-            if ($oNodeParagraph instanceof DOMElement) {
+            if ($oNodeParagraph instanceof \DOMElement) {
                 if ('text:p' == $oNodeParagraph->nodeName) {
                     $this->readParagraph($oShape, $oNodeParagraph);
                 }
@@ -602,7 +602,7 @@ class ODPresentation implements ReaderInterface
             }
         }
 
-        if (count($oShape->getParagraphs()) > 0) {
+        if (\count($oShape->getParagraphs()) > 0) {
             $oShape->setActiveParagraph(0);
         }
     }
@@ -610,7 +610,7 @@ class ODPresentation implements ReaderInterface
     /**
      * Read Paragraph
      */
-    protected function readParagraph(RichText $oShape, DOMElement $oNodeParent): void
+    protected function readParagraph(RichText $oShape, \DOMElement $oNodeParent): void
     {
         $oParagraph = $oShape->createParagraph();
         if ($oNodeParent->hasAttribute('text:style-name')) {
@@ -633,13 +633,13 @@ class ODPresentation implements ReaderInterface
         $oDomList = $this->oXMLReader->getElements('text:span', $oNodeParent);
         $oDomTextNodes = $this->oXMLReader->getElements('text()', $oNodeParent);
         foreach ($oDomTextNodes as $oDomTextNode) {
-            if ('' != trim($oDomTextNode->nodeValue)) {
+            if ('' != \trim($oDomTextNode->nodeValue)) {
                 $oTextRun = $oParagraph->createTextRun();
-                $oTextRun->setText(trim($oDomTextNode->nodeValue));
+                $oTextRun->setText(\trim($oDomTextNode->nodeValue));
             }
         }
         foreach ($oDomList as $oNodeRichTextElement) {
-            if ($oNodeRichTextElement instanceof DOMElement) {
+            if ($oNodeRichTextElement instanceof \DOMElement) {
                 $this->readParagraphItem($oParagraph, $oNodeRichTextElement);
             }
         }
@@ -648,7 +648,7 @@ class ODPresentation implements ReaderInterface
     /**
      * Read Paragraph Item
      */
-    protected function readParagraphItem(Paragraph $oParagraph, DOMElement $oNodeParent): void
+    protected function readParagraphItem(Paragraph $oParagraph, \DOMElement $oNodeParent): void
     {
         if ($this->oXMLReader->elementExists('text:line-break', $oNodeParent)) {
             $oParagraph->createBreak();
@@ -661,7 +661,7 @@ class ODPresentation implements ReaderInterface
                 }
             }
             $oTextRunLink = $this->oXMLReader->getElement('text:a', $oNodeParent);
-            if ($oTextRunLink instanceof DOMElement) {
+            if ($oTextRunLink instanceof \DOMElement) {
                 $oTextRun->setText($oTextRunLink->nodeValue);
                 if ($oTextRunLink->hasAttribute('xlink:href')) {
                     $oTextRun->getHyperlink()->setUrl($oTextRunLink->getAttribute('xlink:href'));
@@ -675,10 +675,10 @@ class ODPresentation implements ReaderInterface
     /**
      * Read List
      */
-    protected function readList(RichText $oShape, DOMElement $oNodeParent): void
+    protected function readList(RichText $oShape, \DOMElement $oNodeParent): void
     {
         foreach ($this->oXMLReader->getElements('text:list-item/*', $oNodeParent) as $oNodeListItem) {
-            if ($oNodeListItem instanceof DOMElement) {
+            if ($oNodeListItem instanceof \DOMElement) {
                 if ('text:p' == $oNodeListItem->nodeName) {
                     $this->readListItem($oShape, $oNodeListItem, $oNodeParent);
                 }
@@ -694,7 +694,7 @@ class ODPresentation implements ReaderInterface
     /**
      * Read List Item
      */
-    protected function readListItem(RichText $oShape, DOMElement $oNodeParent, DOMElement $oNodeParagraph): void
+    protected function readListItem(RichText $oShape, \DOMElement $oNodeParent, \DOMElement $oNodeParagraph): void
     {
         $oParagraph = $oShape->createParagraph();
         if ($oNodeParagraph->hasAttribute('text:style-name')) {
@@ -705,7 +705,7 @@ class ODPresentation implements ReaderInterface
             }
         }
         foreach ($this->oXMLReader->getElements('text:span', $oNodeParent) as $oNodeRichTextElement) {
-            if ($oNodeRichTextElement instanceof DOMElement) {
+            if ($oNodeRichTextElement instanceof \DOMElement) {
                 $this->readParagraphItem($oParagraph, $oNodeRichTextElement);
             }
         }
@@ -717,7 +717,7 @@ class ODPresentation implements ReaderInterface
     protected function loadStylesFile(): void
     {
         foreach ($this->oXMLReader->getElements('/office:document-styles/office:styles/*') as $oElement) {
-            if ($oElement instanceof DOMElement && 'draw:fill-image' == $oElement->nodeName) {
+            if ($oElement instanceof \DOMElement && 'draw:fill-image' == $oElement->nodeName) {
                 $this->arrayCommonStyles[$oElement->getAttribute('draw:name')] = [
                     'type' => 'image',
                     'path' => $oElement->hasAttribute('xlink:href') ? $oElement->getAttribute('xlink:href') : null,
@@ -733,11 +733,11 @@ class ODPresentation implements ReaderInterface
      */
     private function getExpressionUnit(string $expr): string
     {
-        if (substr($expr, -1) == '%') {
+        if (\substr($expr, -1) == '%') {
             return '%';
         }
 
-        return substr($expr, -2);
+        return \substr($expr, -2);
     }
 
     /**
@@ -747,10 +747,10 @@ class ODPresentation implements ReaderInterface
      */
     private function getExpressionValue(string $expr): string
     {
-        if (substr($expr, -1) == '%') {
+        if (\substr($expr, -1) == '%') {
-            return substr($expr, 0, -1);
+            return \substr($expr, 0, -1);
         }
 
-        return substr($expr, 0, -2);
+        return \substr($expr, 0, -2);
     }
 }

PhpOffice/PhpPresentation/Reader/PowerPoint2007.php

@@ -105,16 +105,16 @@ class PowerPoint2007 implements ReaderInterface
     public function fileSupportsUnserializePhpPresentation(string $pFilename = ''): bool
     {
         // Check if file exists
-        if (!file_exists($pFilename)) {
+        if (!\file_exists($pFilename)) {
             throw new FileNotFoundException($pFilename);
         }
 
-        $oZip = new ZipArchive();
+        $oZip = new \ZipArchive();
         // Is it a zip ?
         if (true === $oZip->open($pFilename)) {
             // Is it an OpenXML Document ?
             // Is it a Presentation ?
-            if (is_array($oZip->statName('[Content_Types].xml')) && is_array($oZip->statName('ppt/presentation.xml'))) {
+            if (\is_array($oZip->statName('[Content_Types].xml')) && \is_array($oZip->statName('ppt/presentation.xml'))) {
                 return true;
             }
         }
@@ -147,7 +147,7 @@ class PowerPoint2007 implements ReaderInterface
         $this->oPhpPresentation->setAllMasterSlides([]);
         $this->filename = $pFilename;
 
-        $this->oZip = new ZipArchive();
+        $this->oZip = new \ZipArchive();
         $this->oZip->open($this->filename);
         $docPropsCore = $this->oZip->getFromName('docProps/core.xml');
         if (false !== $docPropsCore) {
@@ -187,7 +187,7 @@ class PowerPoint2007 implements ReaderInterface
         /* @phpstan-ignore-next-line */
         if ($xmlReader->getDomFromString($sPart)) {
             foreach ($xmlReader->getElements('/p:presentation/p:sldSz') as $oElement) {
-                if (!($oElement instanceof DOMElement)) {
+                if (!($oElement instanceof \DOMElement)) {
                     continue;
                 }
                 $type = $oElement->getAttribute('type');
@@ -227,9 +227,9 @@ class PowerPoint2007 implements ReaderInterface
             $oProperties = $this->oPhpPresentation->getDocumentProperties();
             foreach ($arrayProperties as $path => $property) {
                 $oElement = $xmlReader->getElement($path);
-                if ($oElement instanceof DOMElement) {
+                if ($oElement instanceof \DOMElement) {
                     if ($oElement->hasAttribute('xsi:type') && 'dcterms:W3CDTF' == $oElement->getAttribute('xsi:type')) {
-                        $dateTime = DateTime::createFromFormat(DateTime::W3C, $oElement->nodeValue);
+                        $dateTime = \DateTime::createFromFormat(\DateTime::W3C, $oElement->nodeValue);
                         $oProperties->{$property}($dateTime->getTimestamp());
                     } else {
                         $oProperties->{$property}($oElement->nodeValue);
@@ -245,7 +245,7 @@ class PowerPoint2007 implements ReaderInterface
     protected function loadCustomProperties(string $sPart): void
     {
         $xmlReader = new XMLReader();
-        $sPart = str_replace(' xmlns="http://schemas.openxmlformats.org/officeDocument/2006/custom-properties"', '', $sPart);
+        $sPart = \str_replace(' xmlns="http://schemas.openxmlformats.org/officeDocument/2006/custom-properties"', '', $sPart);
         /* @phpstan-ignore-next-line */
         if ($xmlReader->getDomFromString($sPart)) {
             foreach ($xmlReader->getElements('/Properties/property[@fmtid="{D5CDD505-2E9C-101B-9397-08002B2CF9AE}"]') as $element) {
@@ -276,7 +276,7 @@ class PowerPoint2007 implements ReaderInterface
                         $propertyValue = $attributeTypeBoolean->nodeValue == 'true' ? true : false;
                     } elseif ($attributeTypeDate) {
                         $propertyType = DocumentProperties::PROPERTY_TYPE_DATE;
-                        $propertyValue = strtotime($attributeTypeDate->nodeValue);
+                        $propertyValue = \strtotime($attributeTypeDate->nodeValue);
                     } else {
                         $propertyType = DocumentProperties::PROPERTY_TYPE_STRING;
                         $propertyValue = $attributeTypeString->nodeValue;
@@ -297,7 +297,7 @@ class PowerPoint2007 implements ReaderInterface
         /* @phpstan-ignore-next-line */
         if ($xmlReader->getDomFromString($sPart)) {
             $element = $xmlReader->getElement('/p:presentationPr/p:showPr');
-            if ($element instanceof DOMElement) {
+            if ($element instanceof \DOMElement) {
                 if ($element->hasAttribute('loop')) {
                     $this->oPhpPresentation->getPresentationProperties()->setLoopContinuouslyUntilEsc(
                         (bool) $element->getAttribute('loop')
@@ -332,7 +332,7 @@ class PowerPoint2007 implements ReaderInterface
         if ($xmlReader->getDomFromString($sPart)) {
             $pathZoom = '/p:viewPr/p:slideViewPr/p:cSldViewPr/p:cViewPr/p:scale/a:sx';
             $oElement = $xmlReader->getElement($pathZoom);
-            if ($oElement instanceof DOMElement) {
+            if ($oElement instanceof \DOMElement) {
                 if ($oElement->hasAttribute('d') && $oElement->hasAttribute('n')) {
                     $this->oPhpPresentation->getPresentationProperties()->setZoom($oElement->getAttribute('n') / $oElement->getAttribute('d'));
                 }
@@ -354,7 +354,7 @@ class PowerPoint2007 implements ReaderInterface
             $this->loadMasterSlides($xmlReader, $fileRels);
             // Continue with loading the slides
             foreach ($xmlReader->getElements('/p:presentation/p:sldIdLst/p:sldId') as $oElement) {
-                if (!($oElement instanceof DOMElement)) {
+                if (!($oElement instanceof \DOMElement)) {
                     continue;
                 }
                 $rId = $oElement->getAttribute('r:id');
@@ -362,12 +362,12 @@ class PowerPoint2007 implements ReaderInterface
                 if (!empty($pathSlide)) {
                     $pptSlide = $this->oZip->getFromName('ppt/' . $pathSlide);
                     if (false !== $pptSlide) {
-                        $slideRels = 'ppt/slides/_rels/' . basename($pathSlide) . '.rels';
+                        $slideRels = 'ppt/slides/_rels/' . \basename($pathSlide) . '.rels';
                         $this->loadRels($slideRels);
-                        $this->loadSlide($pptSlide, basename($pathSlide));
+                        $this->loadSlide($pptSlide, \basename($pathSlide));
                         foreach ($this->arrayRels[$slideRels] as $rel) {
                             if ('http://schemas.openxmlformats.org/officeDocument/2006/relationships/notesSlide' == $rel['Type']) {
-                                $this->loadSlideNote(basename($rel['Target']), $this->oPhpPresentation->getActiveSlide());
+                                $this->loadSlideNote(\basename($rel['Target']), $this->oPhpPresentation->getActiveSlide());
                             }
                         }
                     }
@@ -383,7 +383,7 @@ class PowerPoint2007 implements ReaderInterface
     {
         // Get all the MasterSlide Id's from the presentation.xml file
         foreach ($xmlReader->getElements('/p:presentation/p:sldMasterIdLst/p:sldMasterId') as $oElement) {
-            if (!($oElement instanceof DOMElement)) {
+            if (!($oElement instanceof \DOMElement)) {
                 continue;
             }
             $rId = $oElement->getAttribute('r:id');
@@ -393,8 +393,8 @@ class PowerPoint2007 implements ReaderInterface
             if (!empty($pathMasterSlide)) {
                 $pptMasterSlide = $this->oZip->getFromName('ppt/' . $pathMasterSlide);
                 if (false !== $pptMasterSlide) {
-                    $this->loadRels('ppt/slideMasters/_rels/' . basename($pathMasterSlide) . '.rels');
+                    $this->loadRels('ppt/slideMasters/_rels/' . \basename($pathMasterSlide) . '.rels');
-                    $this->loadMasterSlide($pptMasterSlide, basename($pathMasterSlide));
+                    $this->loadMasterSlide($pptMasterSlide, \basename($pathMasterSlide));
                 }
             }
         }
@@ -415,9 +415,9 @@ class PowerPoint2007 implements ReaderInterface
 
             // Background
             $oElement = $xmlReader->getElement('/p:sld/p:cSld/p:bg/p:bgPr');
-            if ($oElement instanceof DOMElement) {
+            if ($oElement instanceof \DOMElement) {
                 $oElementColor = $xmlReader->getElement('a:solidFill/a:srgbClr', $oElement);
-                if ($oElementColor instanceof DOMElement) {
+                if ($oElementColor instanceof \DOMElement) {
                     // Color
                     $oColor = new Color();
                     $oColor->setRGB($oElementColor->hasAttribute('val') ? $oElementColor->getAttribute('val') : null);
@@ -429,7 +429,7 @@ class PowerPoint2007 implements ReaderInterface
                     $oSlide->setBackground($oBackground);
                 }
                 $oElementColor = $xmlReader->getElement('a:solidFill/a:schemeClr', $oElement);
-                if ($oElementColor instanceof DOMElement) {
+                if ($oElementColor instanceof \DOMElement) {
                     // Color
                     $oColor = new SchemeColor();
                     $oColor->setValue($oElementColor->hasAttribute('val') ? $oElementColor->getAttribute('val') : null);
@@ -441,23 +441,23 @@ class PowerPoint2007 implements ReaderInterface
                     $oSlide->setBackground($oBackground);
                 }
                 $oElementImage = $xmlReader->getElement('a:blipFill/a:blip', $oElement);
-                if ($oElementImage instanceof DOMElement) {
+                if ($oElementImage instanceof \DOMElement) {
                     $relImg = $this->arrayRels['ppt/slides/_rels/' . $baseFile . '.rels'][$oElementImage->getAttribute('r:embed')];
-                    if (is_array($relImg)) {
+                    if (\is_array($relImg)) {
                         // File
                         $pathImage = 'ppt/slides/' . $relImg['Target'];
-                        $pathImage = explode('/', $pathImage);
+                        $pathImage = \explode('/', $pathImage);
                         foreach ($pathImage as $key => $partPath) {
                             if ('..' == $partPath) {
                                 unset($pathImage[$key - 1]);
                                 unset($pathImage[$key]);
                             }
                         }
-                        $pathImage = implode('/', $pathImage);
+                        $pathImage = \implode('/', $pathImage);
                         $contentImg = $this->oZip->getFromName($pathImage);
 
-                        $tmpBkgImg = tempnam(sys_get_temp_dir(), 'PhpPresentationReaderPpt2007Bkg');
+                        $tmpBkgImg = \tempnam(\sys_get_temp_dir(), 'PhpPresentationReaderPpt2007Bkg');
-                        file_put_contents($tmpBkgImg, $contentImg);
+                        \file_put_contents($tmpBkgImg, $contentImg);
                         // Background
                         $oBackground = new Slide\Background\Image();
                         $oBackground->setPath($tmpBkgImg);
@@ -476,8 +476,8 @@ class PowerPoint2007 implements ReaderInterface
             $oSlide = $this->oPhpPresentation->getActiveSlide();
             foreach ($this->arrayRels['ppt/slides/_rels/' . $baseFile . '.rels'] as $valueRel) {
                 if ('http://schemas.openxmlformats.org/officeDocument/2006/relationships/slideLayout' == $valueRel['Type']) {
-                    $layoutBasename = basename($valueRel['Target']);
+                    $layoutBasename = \basename($valueRel['Target']);
-                    if (array_key_exists($layoutBasename, $this->arraySlideLayouts)) {
+                    if (\array_key_exists($layoutBasename, $this->arraySlideLayouts)) {
                         $oSlide->setSlideLayout($this->arraySlideLayouts[$layoutBasename]);
                     }
                     break;
@@ -498,7 +498,7 @@ class PowerPoint2007 implements ReaderInterface
 
             // Background
             $oElement = $xmlReader->getElement('/p:sldMaster/p:cSld/p:bg');
-            if ($oElement instanceof DOMElement) {
+            if ($oElement instanceof \DOMElement) {
                 $this->loadSlideBackground($xmlReader, $oElement, $oSlideMaster);
             }
 
@@ -523,7 +523,7 @@ class PowerPoint2007 implements ReaderInterface
             foreach ($arrayElementTxStyles as $oElementTxStyle) {
                 $arrayElementsLvl = $xmlReader->getElements('/p:sldMaster/p:txStyles/' . $oElementTxStyle->nodeName . '/*');
                 foreach ($arrayElementsLvl as $oElementLvl) {
-                    if (!($oElementLvl instanceof DOMElement) || 'a:extLst' == $oElementLvl->nodeName) {
+                    if (!($oElementLvl instanceof \DOMElement) || 'a:extLst' == $oElementLvl->nodeName) {
                         continue;
                     }
                     $oRTParagraph = new Paragraph();
@@ -531,9 +531,9 @@ class PowerPoint2007 implements ReaderInterface
                     if ('a:defPPr' == $oElementLvl->nodeName) {
                         $level = 0;
                     } else {
-                        $level = str_replace('a:lvl', '', $oElementLvl->nodeName);
+                        $level = \str_replace('a:lvl', '', $oElementLvl->nodeName);
-                        $level = str_replace('pPr', '', $level);
+                        $level = \str_replace('pPr', '', $level);
-                        $level = intval($level);
+                        $level = \intval($level);
                     }
 
                     if ($oElementLvl->hasAttribute('algn')) {
@@ -555,7 +555,7 @@ class PowerPoint2007 implements ReaderInterface
                         $oRTParagraph->getAlignment()->setIndent($val);
                     }
                     $oElementLvlDefRPR = $xmlReader->getElement('a:defRPr', $oElementLvl);
-                    if ($oElementLvlDefRPR instanceof DOMElement) {
+                    if ($oElementLvlDefRPR instanceof \DOMElement) {
                         if ($oElementLvlDefRPR->hasAttribute('sz')) {
                             $oRTParagraph->getFont()->setSize($oElementLvlDefRPR->getAttribute('sz') / 100);
                         }
@@ -567,7 +567,7 @@ class PowerPoint2007 implements ReaderInterface
                         }
                     }
                     $oElementSchemeColor = $xmlReader->getElement('a:defRPr/a:solidFill/a:schemeClr', $oElementLvl);
-                    if ($oElementSchemeColor instanceof DOMElement) {
+                    if ($oElementSchemeColor instanceof \DOMElement) {
                         if ($oElementSchemeColor->hasAttribute('val')) {
                             $oSchemeColor = new SchemeColor();
                             $oSchemeColor->setValue($oElementSchemeColor->getAttribute('val'));
@@ -592,7 +592,7 @@ class PowerPoint2007 implements ReaderInterface
             // Load the theme
             foreach ($this->arrayRels[$oSlideMaster->getRelsIndex()] as $arrayRel) {
                 if ('http://schemas.openxmlformats.org/officeDocument/2006/relationships/theme' == $arrayRel['Type']) {
-                    $pptTheme = $this->oZip->getFromName('ppt/' . substr($arrayRel['Target'], strrpos($arrayRel['Target'], '../') + 3));
+                    $pptTheme = $this->oZip->getFromName('ppt/' . \substr($arrayRel['Target'], \strrpos($arrayRel['Target'], '../') + 3));
                     if (false !== $pptTheme) {
                         $this->loadTheme($pptTheme, $oSlideMaster);
                     }
@@ -602,7 +602,7 @@ class PowerPoint2007 implements ReaderInterface
 
             // Load the Layoutslide
             foreach ($xmlReader->getElements('/p:sldMaster/p:sldLayoutIdLst/p:sldLayoutId') as $oElement) {
-                if (!($oElement instanceof DOMElement)) {
+                if (!($oElement instanceof \DOMElement)) {
                     continue;
                 }
                 $rId = $oElement->getAttribute('r:id');
@@ -610,11 +610,11 @@ class PowerPoint2007 implements ReaderInterface
                 $pathLayoutSlide = isset($this->arrayRels[$oSlideMaster->getRelsIndex()][$rId]) ?
                     $this->arrayRels[$oSlideMaster->getRelsIndex()][$rId]['Target'] : '';
                 if (!empty($pathLayoutSlide)) {
-                    $pptLayoutSlide = $this->oZip->getFromName('ppt/' . substr($pathLayoutSlide, strrpos($pathLayoutSlide, '../') + 3));
+                    $pptLayoutSlide = $this->oZip->getFromName('ppt/' . \substr($pathLayoutSlide, \strrpos($pathLayoutSlide, '../') + 3));
                     if (false !== $pptLayoutSlide) {
-                        $this->loadRels('ppt/slideLayouts/_rels/' . basename($pathLayoutSlide) . '.rels');
+                        $this->loadRels('ppt/slideLayouts/_rels/' . \basename($pathLayoutSlide) . '.rels');
                         $oSlideMaster->addSlideLayout(
-                            $this->loadLayoutSlide($pptLayoutSlide, basename($pathLayoutSlide), $oSlideMaster)
+                            $this->loadLayoutSlide($pptLayoutSlide, \basename($pathLayoutSlide), $oSlideMaster)
                         );
                     }
                 }
@@ -633,19 +633,19 @@ class PowerPoint2007 implements ReaderInterface
 
             // Name
             $oElement = $xmlReader->getElement('/p:sldLayout/p:cSld');
-            if ($oElement instanceof DOMElement && $oElement->hasAttribute('name')) {
+            if ($oElement instanceof \DOMElement && $oElement->hasAttribute('name')) {
                 $oSlideLayout->setLayoutName($oElement->getAttribute('name'));
             }
 
             // Background
             $oElement = $xmlReader->getElement('/p:sldLayout/p:cSld/p:bg');
-            if ($oElement instanceof DOMElement) {
+            if ($oElement instanceof \DOMElement) {
                 $this->loadSlideBackground($xmlReader, $oElement, $oSlideLayout);
             }
 
             // ColorMapping
             $oElement = $xmlReader->getElement('/p:sldLayout/p:clrMapOvr/a:overrideClrMapping');
-            if ($oElement instanceof DOMElement && $oElement->hasAttributes()) {
+            if ($oElement instanceof \DOMElement && $oElement->hasAttributes()) {
                 $colorMap = [];
                 foreach ($oElement->attributes as $attr) {
                     $colorMap[$attr->nodeName] = $attr->nodeValue;
@@ -671,11 +671,11 @@ class PowerPoint2007 implements ReaderInterface
         if ($xmlReader->getDomFromString($sPart)) {
             $oElements = $xmlReader->getElements('/a:theme/a:themeElements/a:clrScheme/*');
             foreach ($oElements as $oElement) {
-                if ($oElement instanceof DOMElement) {
+                if ($oElement instanceof \DOMElement) {
                     $oSchemeColor = new SchemeColor();
-                    $oSchemeColor->setValue(str_replace('a:', '', $oElement->tagName));
+                    $oSchemeColor->setValue(\str_replace('a:', '', $oElement->tagName));
                     $colorElement = $xmlReader->getElement('*', $oElement);
-                    if ($colorElement instanceof DOMElement) {
+                    if ($colorElement instanceof \DOMElement) {
                         if ($colorElement->hasAttribute('lastClr')) {
                             $oSchemeColor->setRGB($colorElement->getAttribute('lastClr'));
                         } elseif ($colorElement->hasAttribute('val')) {
@@ -688,11 +688,11 @@ class PowerPoint2007 implements ReaderInterface
         }
     }
 
-    protected function loadSlideBackground(XMLReader $xmlReader, DOMElement $oElement, AbstractSlide $oSlide): void
+    protected function loadSlideBackground(XMLReader $xmlReader, \DOMElement $oElement, AbstractSlide $oSlide): void
     {
         // Background color
         $oElementColor = $xmlReader->getElement('p:bgPr/a:solidFill/a:srgbClr', $oElement);
-        if ($oElementColor instanceof DOMElement) {
+        if ($oElementColor instanceof \DOMElement) {
             // Color
             $oColor = new Color();
             $oColor->setRGB($oElementColor->hasAttribute('val') ? $oElementColor->getAttribute('val') : null);
@@ -705,7 +705,7 @@ class PowerPoint2007 implements ReaderInterface
 
         // Background scheme color
         $oElementSchemeColor = $xmlReader->getElement('p:bgRef/a:schemeClr', $oElement);
-        if ($oElementSchemeColor instanceof DOMElement) {
+        if ($oElementSchemeColor instanceof \DOMElement) {
             // Color
             $oColor = new SchemeColor();
             $oColor->setValue($oElementSchemeColor->hasAttribute('val') ? $oElementSchemeColor->getAttribute('val') : null);
@@ -718,23 +718,23 @@ class PowerPoint2007 implements ReaderInterface
 
         // Background image
         $oElementImage = $xmlReader->getElement('p:bgPr/a:blipFill/a:blip', $oElement);
-        if ($oElementImage instanceof DOMElement) {
+        if ($oElementImage instanceof \DOMElement) {
             $relImg = $this->arrayRels[$oSlide->getRelsIndex()][$oElementImage->getAttribute('r:embed')];
-            if (is_array($relImg)) {
+            if (\is_array($relImg)) {
                 // File
                 $pathImage = 'ppt/slides/' . $relImg['Target'];
-                $pathImage = explode('/', $pathImage);
+                $pathImage = \explode('/', $pathImage);
                 foreach ($pathImage as $key => $partPath) {
                     if ('..' == $partPath) {
                         unset($pathImage[$key - 1]);
                         unset($pathImage[$key]);
                     }
                 }
-                $pathImage = implode('/', $pathImage);
+                $pathImage = \implode('/', $pathImage);
                 $contentImg = $this->oZip->getFromName($pathImage);
 
-                $tmpBkgImg = tempnam(sys_get_temp_dir(), 'PhpPresentationReaderPpt2007Bkg');
+                $tmpBkgImg = \tempnam(\sys_get_temp_dir(), 'PhpPresentationReaderPpt2007Bkg');
-                file_put_contents($tmpBkgImg, $contentImg);
+                \file_put_contents($tmpBkgImg, $contentImg);
                 // Background
                 $oBackground = new Slide\Background\Image();
                 $oBackground->setPath($tmpBkgImg);
@@ -757,7 +757,7 @@ class PowerPoint2007 implements ReaderInterface
         }
     }
 
-    protected function loadShapeDrawing(XMLReader $document, DOMElement $node, AbstractSlide $oSlide): void
+    protected function loadShapeDrawing(XMLReader $document, \DOMElement $node, AbstractSlide $oSlide): void
     {
         // Core
         $document->registerNamespace('asvg', 'http://schemas.microsoft.com/office/drawing/2016/SVG/main');
@@ -771,13 +771,13 @@ class PowerPoint2007 implements ReaderInterface
         $fileRels = $oSlide->getRelsIndex();
 
         $oElement = $document->getElement('p:nvPicPr/p:cNvPr', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             $oShape->setName($oElement->hasAttribute('name') ? $oElement->getAttribute('name') : '');
             $oShape->setDescription($oElement->hasAttribute('descr') ? $oElement->getAttribute('descr') : '');
 
             // Hyperlink
             $oElementHlinkClick = $document->getElement('a:hlinkClick', $oElement);
-            if (is_object($oElementHlinkClick)) {
+            if (\is_object($oElementHlinkClick)) {
                 $oShape->setHyperlink(
                     $this->loadHyperlink($document, $oElementHlinkClick, $oShape->getHyperlink())
                 );
@@ -785,46 +785,46 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:blipFill/a:blip', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('r:embed') && isset($this->arrayRels[$fileRels][$oElement->getAttribute('r:embed')]['Target'])) {
                 $pathImage = 'ppt/slides/' . $this->arrayRels[$fileRels][$oElement->getAttribute('r:embed')]['Target'];
-                $pathImage = explode('/', $pathImage);
+                $pathImage = \explode('/', $pathImage);
                 foreach ($pathImage as $key => $partPath) {
                     if ('..' == $partPath) {
                         unset($pathImage[$key - 1]);
                         unset($pathImage[$key]);
                     }
                 }
-                $pathImage = implode('/', $pathImage);
+                $pathImage = \implode('/', $pathImage);
                 $imageFile = $this->oZip->getFromName($pathImage);
                 if (!empty($imageFile)) {
                     if ($oShape instanceof Gd) {
-                        $info = getimagesizefromstring($imageFile);
+                        $info = \getimagesizefromstring($imageFile);
                         $oShape->setMimeType($info['mime']);
-                        $oShape->setRenderingFunction(str_replace('/', '', $info['mime']));
+                        $oShape->setRenderingFunction(\str_replace('/', '', $info['mime']));
-                        $oShape->setImageResource(imagecreatefromstring($imageFile));
+                        $oShape->setImageResource(\imagecreatefromstring($imageFile));
                     } elseif ($oShape instanceof Base64) {
-                        $oShape->setData('data:image/svg+xml;base64,' . base64_encode($imageFile));
+                        $oShape->setData('data:image/svg+xml;base64,' . \base64_encode($imageFile));
                     }
                 }
             }
         }
 
         $oElement = $document->getElement('p:spPr', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             $oFill = $this->loadStyleFill($document, $oElement);
             $oShape->setFill($oFill);
         }
 
         $oElement = $document->getElement('p:spPr/a:xfrm', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('rot')) {
                 $oShape->setRotation((int) CommonDrawing::angleToDegrees((int) $oElement->getAttribute('rot')));
             }
         }
 
         $oElement = $document->getElement('p:spPr/a:xfrm/a:off', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('x')) {
                 $oShape->setOffsetX(CommonDrawing::emuToPixels((int) $oElement->getAttribute('x')));
             }
@@ -834,7 +834,7 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:spPr/a:xfrm/a:ext', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('cx')) {
                 $oShape->setWidth(CommonDrawing::emuToPixels((int) $oElement->getAttribute('cx')));
             }
@@ -844,11 +844,11 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:spPr/a:effectLst', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             $oShape->getShadow()->setVisible(true);
 
             $oSubElement = $document->getElement('a:outerShdw', $oElement);
-            if ($oSubElement instanceof DOMElement) {
+            if ($oSubElement instanceof \DOMElement) {
                 if ($oSubElement->hasAttribute('blurRad')) {
                     $oShape->getShadow()->setBlurRadius(CommonDrawing::emuToPixels((int) $oSubElement->getAttribute('blurRad')));
                 }
@@ -864,7 +864,7 @@ class PowerPoint2007 implements ReaderInterface
             }
 
             $oSubElement = $document->getElement('a:outerShdw/a:srgbClr', $oElement);
-            if ($oSubElement instanceof DOMElement) {
+            if ($oSubElement instanceof \DOMElement) {
                 if ($oSubElement->hasAttribute('val')) {
                     $oColor = new Color();
                     $oColor->setRGB($oSubElement->getAttribute('val'));
@@ -873,7 +873,7 @@ class PowerPoint2007 implements ReaderInterface
             }
 
             $oSubElement = $document->getElement('a:outerShdw/a:srgbClr/a:alpha', $oElement);
-            if ($oSubElement instanceof DOMElement) {
+            if ($oSubElement instanceof \DOMElement) {
                 if ($oSubElement->hasAttribute('val')) {
                     $oShape->getShadow()->setAlpha((int) $oSubElement->getAttribute('val') / 1000);
                 }
@@ -883,7 +883,7 @@ class PowerPoint2007 implements ReaderInterface
         $oSlide->addShape($oShape);
     }
 
-    protected function loadShapeRichText(XMLReader $document, DOMElement $node, $oSlide): void
+    protected function loadShapeRichText(XMLReader $document, \DOMElement $node, $oSlide): void
     {
         if (!$document->elementExists('p:txBody/a:p/a:r', $node) || !$oSlide instanceof AbstractSlide) {
             return;
@@ -897,12 +897,12 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:spPr/a:xfrm', $node);
-        if ($oElement instanceof DOMElement && $oElement->hasAttribute('rot')) {
+        if ($oElement instanceof \DOMElement && $oElement->hasAttribute('rot')) {
             $oShape->setRotation((int) CommonDrawing::angleToDegrees((int) $oElement->getAttribute('rot')));
         }
 
         $oElement = $document->getElement('p:spPr/a:xfrm/a:off', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('x')) {
                 $oShape->setOffsetX(CommonDrawing::emuToPixels((int) $oElement->getAttribute('x')));
             }
@@ -912,7 +912,7 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:spPr/a:xfrm/a:ext', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('cx')) {
                 $oShape->setWidth(CommonDrawing::emuToPixels((int) $oElement->getAttribute('cx')));
             }
@@ -922,7 +922,7 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:nvSpPr/p:nvPr/p:ph', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('type')) {
                 $placeholder = new Placeholder($oElement->getAttribute('type'));
                 $oShape->setPlaceHolder($placeholder);
@@ -931,24 +931,24 @@ class PowerPoint2007 implements ReaderInterface
 
         $arrayElements = $document->getElements('p:txBody/a:p', $node);
         foreach ($arrayElements as $oElement) {
-            if ($oElement instanceof DOMElement) {
+            if ($oElement instanceof \DOMElement) {
                 $this->loadParagraph($document, $oElement, $oShape);
             }
         }
 
-        if (count($oShape->getParagraphs()) > 0) {
+        if (\count($oShape->getParagraphs()) > 0) {
             $oShape->setActiveParagraph(0);
         }
     }
 
-    protected function loadShapeTable(XMLReader $document, DOMElement $node, AbstractSlide $oSlide): void
+    protected function loadShapeTable(XMLReader $document, \DOMElement $node, AbstractSlide $oSlide): void
     {
         $this->fileRels = $oSlide->getRelsIndex();
 
         $oShape = $oSlide->createTableShape();
 
         $oElement = $document->getElement('p:cNvPr', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('name')) {
                 $oShape->setName($oElement->getAttribute('name'));
             }
@@ -958,7 +958,7 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:xfrm/a:off', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('x')) {
                 $oShape->setOffsetX(CommonDrawing::emuToPixels((int) $oElement->getAttribute('x')));
             }
@@ -968,7 +968,7 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElement = $document->getElement('p:xfrm/a:ext', $node);
-        if ($oElement instanceof DOMElement) {
+        if ($oElement instanceof \DOMElement) {
             if ($oElement->hasAttribute('cx')) {
                 $oShape->setWidth(CommonDrawing::emuToPixels((int) $oElement->getAttribute('cx')));
             }
@@ -981,14 +981,14 @@ class PowerPoint2007 implements ReaderInterface
         $oShape->setNumColumns($arrayElements->length);
         $oShape->createRow();
         foreach ($arrayElements as $key => $oElement) {
-            if ($oElement instanceof DOMElement && $oElement->getAttribute('w')) {
+            if ($oElement instanceof \DOMElement && $oElement->getAttribute('w')) {
                 $oShape->getRow(0)->getCell($key)->setWidth(CommonDrawing::emuToPixels((int) $oElement->getAttribute('w')));
             }
         }
 
         $arrayElements = $document->getElements('a:graphic/a:graphicData/a:tbl/a:tr', $node);
         foreach ($arrayElements as $keyRow => $oElementRow) {
-            if (!($oElementRow instanceof DOMElement)) {
+            if (!($oElementRow instanceof \DOMElement)) {
                 continue;
             }
             if ($oShape->hasRow($keyRow)) {
@@ -1001,7 +1001,7 @@ class PowerPoint2007 implements ReaderInterface
             }
             $arrayElementsCell = $document->getElements('a:tc', $oElementRow);
             foreach ($arrayElementsCell as $keyCell => $oElementCell) {
-                if (!($oElementCell instanceof DOMElement)) {
+                if (!($oElementCell instanceof \DOMElement)) {
                     continue;
                 }
                 $oCell = $oRow->getCell($keyCell);
@@ -1014,14 +1014,14 @@ class PowerPoint2007 implements ReaderInterface
                 }
 
                 foreach ($document->getElements('a:txBody/a:p', $oElementCell) as $oElementPara) {
-                    if ($oElementPara instanceof DOMElement) {
+                    if ($oElementPara instanceof \DOMElement) {
                         $this->loadParagraph($document, $oElementPara, $oCell);
                     }
                 }
 
                 $oElementTcPr = $document->getElement('a:tcPr', $oElementCell);
-                if ($oElementTcPr instanceof DOMElement) {
+                if ($oElementTcPr instanceof \DOMElement) {
-                    $numParagraphs = count($oCell->getParagraphs());
+                    $numParagraphs = \count($oCell->getParagraphs());
                     if ($numParagraphs > 0) {
                         if ($oElementTcPr->hasAttribute('vert')) {
                             $oCell->getParagraph(0)->getAlignment()->setTextDirection($oElementTcPr->getAttribute('vert'));
@@ -1050,27 +1050,27 @@ class PowerPoint2007 implements ReaderInterface
 
                     $oBorders = new Borders();
                     $oElementBorderL = $document->getElement('a:lnL', $oElementTcPr);
-                    if ($oElementBorderL instanceof DOMElement) {
+                    if ($oElementBorderL instanceof \DOMElement) {
                         $this->loadStyleBorder($document, $oElementBorderL, $oBorders->getLeft());
                     }
                     $oElementBorderR = $document->getElement('a:lnR', $oElementTcPr);
-                    if ($oElementBorderR instanceof DOMElement) {
+                    if ($oElementBorderR instanceof \DOMElement) {
                         $this->loadStyleBorder($document, $oElementBorderR, $oBorders->getRight());
                     }
                     $oElementBorderT = $document->getElement('a:lnT', $oElementTcPr);
-                    if ($oElementBorderT instanceof DOMElement) {
+                    if ($oElementBorderT instanceof \DOMElement) {
                         $this->loadStyleBorder($document, $oElementBorderT, $oBorders->getTop());
                     }
                     $oElementBorderB = $document->getElement('a:lnB', $oElementTcPr);
-                    if ($oElementBorderB instanceof DOMElement) {
+                    if ($oElementBorderB instanceof \DOMElement) {
                         $this->loadStyleBorder($document, $oElementBorderB, $oBorders->getBottom());
                     }
                     $oElementBorderDiagDown = $document->getElement('a:lnTlToBr', $oElementTcPr);
-                    if ($oElementBorderDiagDown instanceof DOMElement) {
+                    if ($oElementBorderDiagDown instanceof \DOMElement) {
                         $this->loadStyleBorder($document, $oElementBorderDiagDown, $oBorders->getDiagonalDown());
                     }
                     $oElementBorderDiagUp = $document->getElement('a:lnBlToTr', $oElementTcPr);
-                    if ($oElementBorderDiagUp instanceof DOMElement) {
+                    if ($oElementBorderDiagUp instanceof \DOMElement) {
                         $this->loadStyleBorder($document, $oElementBorderDiagUp, $oBorders->getDiagonalUp());
                     }
                     $oCell->setBorders($oBorders);
@@ -1082,14 +1082,14 @@ class PowerPoint2007 implements ReaderInterface
     /**
      * @param Cell|RichText $oShape
      */
-    protected function loadParagraph(XMLReader $document, DOMElement $oElement, $oShape): void
+    protected function loadParagraph(XMLReader $document, \DOMElement $oElement, $oShape): void
     {
         // Core
         $oParagraph = $oShape->createParagraph();
         $oParagraph->setRichTextElements([]);
 
         $oSubElement = $document->getElement('a:pPr', $oElement);
-        if ($oSubElement instanceof DOMElement) {
+        if ($oSubElement instanceof \DOMElement) {
             if ($oSubElement->hasAttribute('algn')) {
                 $oParagraph->getAlignment()->setHorizontal($oSubElement->getAttribute('algn'));
             }
@@ -1113,41 +1113,41 @@ class PowerPoint2007 implements ReaderInterface
             }
 
             $oElementLineSpacingPoints = $document->getElement('a:lnSpc/a:spcPts', $oSubElement);
-            if ($oElementLineSpacingPoints instanceof DOMElement) {
+            if ($oElementLineSpacingPoints instanceof \DOMElement) {
                 $oParagraph->setLineSpacingMode(Paragraph::LINE_SPACING_MODE_POINT);
                 $oParagraph->setLineSpacing($oElementLineSpacingPoints->getAttribute('val') / 100);
             }
             $oElementLineSpacingPercent = $document->getElement('a:lnSpc/a:spcPct', $oSubElement);
-            if ($oElementLineSpacingPercent instanceof DOMElement) {
+            if ($oElementLineSpacingPercent instanceof \DOMElement) {
                 $oParagraph->setLineSpacingMode(Paragraph::LINE_SPACING_MODE_PERCENT);
                 $oParagraph->setLineSpacing($oElementLineSpacingPercent->getAttribute('val') / 1000);
             }
             $oElementSpacingBefore = $document->getElement('a:spcBef/a:spcPts', $oSubElement);
-            if ($oElementSpacingBefore instanceof DOMElement) {
+            if ($oElementSpacingBefore instanceof \DOMElement) {
                 $oParagraph->setSpacingBefore($oElementSpacingBefore->getAttribute('val') / 100);
             }
             $oElementSpacingAfter = $document->getElement('a:spcAft/a:spcPts', $oSubElement);
-            if ($oElementSpacingAfter instanceof DOMElement) {
+            if ($oElementSpacingAfter instanceof \DOMElement) {
                 $oParagraph->setSpacingAfter($oElementSpacingAfter->getAttribute('val') / 100);
             }
 
             $oParagraph->getBulletStyle()->setBulletType(Bullet::TYPE_NONE);
 
             $oElementBuFont = $document->getElement('a:buFont', $oSubElement);
-            if ($oElementBuFont instanceof DOMElement) {
+            if ($oElementBuFont instanceof \DOMElement) {
                 if ($oElementBuFont->hasAttribute('typeface')) {
                     $oParagraph->getBulletStyle()->setBulletFont($oElementBuFont->getAttribute('typeface'));
                 }
             }
             $oElementBuChar = $document->getElement('a:buChar', $oSubElement);
-            if ($oElementBuChar instanceof DOMElement) {
+            if ($oElementBuChar instanceof \DOMElement) {
                 $oParagraph->getBulletStyle()->setBulletType(Bullet::TYPE_BULLET);
                 if ($oElementBuChar->hasAttribute('char')) {
                     $oParagraph->getBulletStyle()->setBulletChar($oElementBuChar->getAttribute('char'));
                 }
             }
             $oElementBuAutoNum = $document->getElement('a:buAutoNum', $oSubElement);
-            if ($oElementBuAutoNum instanceof DOMElement) {
+            if ($oElementBuAutoNum instanceof \DOMElement) {
                 $oParagraph->getBulletStyle()->setBulletType(Bullet::TYPE_NUMERIC);
                 if ($oElementBuAutoNum->hasAttribute('type')) {
                     $oParagraph->getBulletStyle()->setBulletNumericStyle($oElementBuAutoNum->getAttribute('type'));
@@ -1157,13 +1157,13 @@ class PowerPoint2007 implements ReaderInterface
                 }
             }
             $oElementBuClr = $document->getElement('a:buClr', $oSubElement);
-            if ($oElementBuClr instanceof DOMElement) {
+            if ($oElementBuClr instanceof \DOMElement) {
                 $oColor = new Color();
                 /**
                  * @todo Create protected for reading Color
                  */
                 $oElementColor = $document->getElement('a:srgbClr', $oElementBuClr);
-                if ($oElementColor instanceof DOMElement) {
+                if ($oElementColor instanceof \DOMElement) {
                     $oColor->setRGB($oElementColor->hasAttribute('val') ? $oElementColor->getAttribute('val') : null);
                 }
                 $oParagraph->getBulletStyle()->setBulletColor($oColor);
@@ -1171,7 +1171,7 @@ class PowerPoint2007 implements ReaderInterface
         }
         $arraySubElements = $document->getElements('(a:r|a:br)', $oElement);
         foreach ($arraySubElements as $oSubElement) {
-            if (!($oSubElement instanceof DOMElement)) {
+            if (!($oSubElement instanceof \DOMElement)) {
                 continue;
             }
             if ('a:br' == $oSubElement->tagName) {
@@ -1179,7 +1179,7 @@ class PowerPoint2007 implements ReaderInterface
             }
             if ('a:r' == $oSubElement->tagName) {
                 $oElementrPr = $document->getElement('a:rPr', $oSubElement);
-                if (is_object($oElementrPr)) {
+                if (\is_object($oElementrPr)) {
                     $oText = $oParagraph->createTextRun();
 
                     if ($oElementrPr->hasAttribute('b')) {
@@ -1201,14 +1201,14 @@ class PowerPoint2007 implements ReaderInterface
                     }
                     // Color
                     $oElementSrgbClr = $document->getElement('a:solidFill/a:srgbClr', $oElementrPr);
-                    if (is_object($oElementSrgbClr) && $oElementSrgbClr->hasAttribute('val')) {
+                    if (\is_object($oElementSrgbClr) && $oElementSrgbClr->hasAttribute('val')) {
                         $oColor = new Color();
                         $oColor->setRGB($oElementSrgbClr->getAttribute('val'));
                         $oText->getFont()->setColor($oColor);
                     }
                     // Hyperlink
                     $oElementHlinkClick = $document->getElement('a:hlinkClick', $oElementrPr);
-                    if (is_object($oElementHlinkClick)) {
+                    if (\is_object($oElementHlinkClick)) {
                         $oText->setHyperlink(
                             $this->loadHyperlink($document, $oElementHlinkClick, $oText->getHyperlink())
                         );
@@ -1216,21 +1216,21 @@ class PowerPoint2007 implements ReaderInterface
                     // Font
                     $oElementFontFormat = null;
                     $oElementFontFormatLatin = $document->getElement('a:latin', $oElementrPr);
-                    if (is_object($oElementFontFormatLatin)) {
+                    if (\is_object($oElementFontFormatLatin)) {
                         $oText->getFont()->setFormat(Font::FORMAT_LATIN);
                         $oElementFontFormat = $oElementFontFormatLatin;
                     }
                     $oElementFontFormatEastAsian = $document->getElement('a:ea', $oElementrPr);
-                    if (is_object($oElementFontFormatEastAsian)) {
+                    if (\is_object($oElementFontFormatEastAsian)) {
                         $oText->getFont()->setFormat(Font::FORMAT_EAST_ASIAN);
                         $oElementFontFormat = $oElementFontFormatEastAsian;
                     }
                     $oElementFontFormatComplexScript = $document->getElement('a:cs', $oElementrPr);
-                    if (is_object($oElementFontFormatComplexScript)) {
+                    if (\is_object($oElementFontFormatComplexScript)) {
                         $oText->getFont()->setFormat(Font::FORMAT_COMPLEX_SCRIPT);
                         $oElementFontFormat = $oElementFontFormatComplexScript;
                     }
-                    if (is_object($oElementFontFormat) && $oElementFontFormat->hasAttribute('typeface')) {
+                    if (\is_object($oElementFontFormat) && $oElementFontFormat->hasAttribute('typeface')) {
                         $oText->getFont()->setName($oElementFontFormat->getAttribute('typeface'));
                     }
 
@@ -1244,7 +1244,7 @@ class PowerPoint2007 implements ReaderInterface
         }
     }
 
-    protected function loadHyperlink(XMLReader $xmlReader, DOMElement $element, Hyperlink $hyperlink): Hyperlink
+    protected function loadHyperlink(XMLReader $xmlReader, \DOMElement $element, Hyperlink $hyperlink): Hyperlink
     {
         if ($element->hasAttribute('tooltip')) {
             $hyperlink->setTooltip($element->getAttribute('tooltip'));
@@ -1261,7 +1261,7 @@ class PowerPoint2007 implements ReaderInterface
         return $hyperlink;
     }
 
-    protected function loadStyleBorder(XMLReader $xmlReader, DOMElement $oElement, Border $oBorder): void
+    protected function loadStyleBorder(XMLReader $xmlReader, \DOMElement $oElement, Border $oBorder): void
     {
         if ($oElement->hasAttribute('w')) {
             $oBorder->setLineWidth($oElement->getAttribute('w') / 12700);
@@ -1271,54 +1271,54 @@ class PowerPoint2007 implements ReaderInterface
         }
 
         $oElementNoFill = $xmlReader->getElement('a:noFill', $oElement);
-        if ($oElementNoFill instanceof DOMElement && Border::LINE_SINGLE == $oBorder->getLineStyle()) {
+        if ($oElementNoFill instanceof \DOMElement && Border::LINE_SINGLE == $oBorder->getLineStyle()) {
             $oBorder->setLineStyle(Border::LINE_NONE);
         }
 
         $oElementColor = $xmlReader->getElement('a:solidFill/a:srgbClr', $oElement);
-        if ($oElementColor instanceof DOMElement) {
+        if ($oElementColor instanceof \DOMElement) {
             $oBorder->setColor($this->loadStyleColor($xmlReader, $oElementColor));
         }
 
         $oElementDashStyle = $xmlReader->getElement('a:prstDash', $oElement);
-        if ($oElementDashStyle instanceof DOMElement && $oElementDashStyle->hasAttribute('val')) {
+        if ($oElementDashStyle instanceof \DOMElement && $oElementDashStyle->hasAttribute('val')) {
             $oBorder->setDashStyle($oElementDashStyle->getAttribute('val'));
         }
     }
 
-    protected function loadStyleColor(XMLReader $xmlReader, DOMElement $oElement): Color
+    protected function loadStyleColor(XMLReader $xmlReader, \DOMElement $oElement): Color
     {
         $oColor = new Color();
         $oColor->setRGB($oElement->getAttribute('val'));
         $oElementAlpha = $xmlReader->getElement('a:alpha', $oElement);
-        if ($oElementAlpha instanceof DOMElement && $oElementAlpha->hasAttribute('val')) {
+        if ($oElementAlpha instanceof \DOMElement && $oElementAlpha->hasAttribute('val')) {
-            $alpha = strtoupper(dechex((($oElementAlpha->getAttribute('val') / 1000) / 100) * 255));
+            $alpha = \strtoupper(\dechex((($oElementAlpha->getAttribute('val') / 1000) / 100) * 255));
             $oColor->setRGB($oElement->getAttribute('val'), $alpha);
         }
 
         return $oColor;
     }
 
-    protected function loadStyleFill(XMLReader $xmlReader, DOMElement $oElement): ?Fill
+    protected function loadStyleFill(XMLReader $xmlReader, \DOMElement $oElement): ?Fill
     {
         // Gradient fill
         $oElementFill = $xmlReader->getElement('a:gradFill', $oElement);
-        if ($oElementFill instanceof DOMElement) {
+        if ($oElementFill instanceof \DOMElement) {
             $oFill = new Fill();
             $oFill->setFillType(Fill::FILL_GRADIENT_LINEAR);
 
             $oElementColor = $xmlReader->getElement('a:gsLst/a:gs[@pos="0"]/a:srgbClr', $oElementFill);
-            if ($oElementColor instanceof DOMElement && $oElementColor->hasAttribute('val')) {
+            if ($oElementColor instanceof \DOMElement && $oElementColor->hasAttribute('val')) {
                 $oFill->setStartColor($this->loadStyleColor($xmlReader, $oElementColor));
             }
 
             $oElementColor = $xmlReader->getElement('a:gsLst/a:gs[@pos="100000"]/a:srgbClr', $oElementFill);
-            if ($oElementColor instanceof DOMElement && $oElementColor->hasAttribute('val')) {
+            if ($oElementColor instanceof \DOMElement && $oElementColor->hasAttribute('val')) {
                 $oFill->setEndColor($this->loadStyleColor($xmlReader, $oElementColor));
             }
 
             $oRotation = $xmlReader->getElement('a:lin', $oElementFill);
-            if ($oRotation instanceof DOMElement && $oRotation->hasAttribute('ang')) {
+            if ($oRotation instanceof \DOMElement && $oRotation->hasAttribute('ang')) {
                 $oFill->setRotation(CommonDrawing::angleToDegrees((int) $oRotation->getAttribute('ang')));
             }
 
@@ -1327,12 +1327,12 @@ class PowerPoint2007 implements ReaderInterface
 
         // Solid fill
         $oElementFill = $xmlReader->getElement('a:solidFill', $oElement);
-        if ($oElementFill instanceof DOMElement) {
+        if ($oElementFill instanceof \DOMElement) {
             $oFill = new Fill();
             $oFill->setFillType(Fill::FILL_SOLID);
 
             $oElementColor = $xmlReader->getElement('a:srgbClr', $oElementFill);
-            if ($oElementColor instanceof DOMElement) {
+            if ($oElementColor instanceof \DOMElement) {
                 $oFill->setStartColor($this->loadStyleColor($xmlReader, $oElementColor));
             }
 
@@ -1350,7 +1350,7 @@ class PowerPoint2007 implements ReaderInterface
             /* @phpstan-ignore-next-line */
             if ($xmlReader->getDomFromString($sPart)) {
                 foreach ($xmlReader->getElements('*') as $oNode) {
-                    if (!($oNode instanceof DOMElement)) {
+                    if (!($oNode instanceof \DOMElement)) {
                         continue;
                     }
                     $this->arrayRels[$fileRels][$oNode->getAttribute('Id')] = [
@@ -1364,16 +1364,16 @@ class PowerPoint2007 implements ReaderInterface
 
     /**
      * @param AbstractSlide|Note $oSlide
-     * @param DOMNodeList<DOMNode> $oElements
+     * @param \DOMNodeList<\DOMNode> $oElements
      *
      * @throws FeatureNotImplementedException
      *
      * @internal param $baseFile
      */
-    protected function loadSlideShapes($oSlide, DOMNodeList $oElements, XMLReader $xmlReader): void
+    protected function loadSlideShapes($oSlide, \DOMNodeList $oElements, XMLReader $xmlReader): void
     {
         foreach ($oElements as $oNode) {
-            if (!($oNode instanceof DOMElement)) {
+            if (!($oNode instanceof \DOMElement)) {
                 continue;
             }
             switch ($oNode->tagName) {

PhpOffice/PhpPresentation/Reader/PowerPoint97.php

@@ -397,7 +397,7 @@ class PowerPoint97 implements ReaderInterface
     public function fileSupportsUnserializePhpPresentation(string $pFilename = ''): bool
     {
         // Check if file exists
-        if (!file_exists($pFilename)) {
+        if (!\file_exists($pFilename)) {
             throw new FileNotFoundException($pFilename);
         }
 
@@ -408,7 +408,7 @@ class PowerPoint97 implements ReaderInterface
             $ole->read($pFilename);
 
             return true;
-        } catch (Exception $e) {
+        } catch (\Exception $e) {
             return false;
         }
     }
@@ -652,8 +652,8 @@ class PowerPoint97 implements ReaderInterface
         $recLen = self::getInt4d($stream, $pos + 4);
 
         return [
-            'recVer' => ($rec >> 0) & bindec('1111'),
+            'recVer' => ($rec >> 0) & \bindec('1111'),
-            'recInstance' => ($rec >> 4) & bindec('111111111111'),
+            'recInstance' => ($rec >> 4) & \bindec('111111111111'),
             'recType' => $recType,
             'recLen' => $recLen,
         ];
@@ -664,7 +664,7 @@ class PowerPoint97 implements ReaderInterface
      */
     public static function getInt1d(string $data, int $pos): int
     {
-        return ord($data[$pos]);
+        return \ord($data[$pos]);
     }
 
     /**
@@ -672,7 +672,7 @@ class PowerPoint97 implements ReaderInterface
      */
     public static function getInt2d(string $data, int $pos): int
     {
-        return ord($data[$pos]) | (ord($data[$pos + 1]) << 8);
+        return \ord($data[$pos]) | (\ord($data[$pos + 1]) << 8);
     }
 
     /**
@@ -683,15 +683,15 @@ class PowerPoint97 implements ReaderInterface
         // FIX: represent numbers correctly on 64-bit system
         // http://sourceforge.net/tracker/index.php?func=detail&aid=1487372&group_id=99160&atid=623334
         // Hacked by Andreas Rehm 2006 to ensure correct result of the <<24 block on 32 and 64bit systems
-        $or24 = ord($data[$pos + 3]);
+        $or24 = \ord($data[$pos + 3]);
 
         $ord24 = ($or24 & 127) << 24;
         if ($or24 >= 128) {
             // negative number
-            $ord24 = -abs((256 - $or24) << 24);
+            $ord24 = -\abs((256 - $or24) << 24);
         }
 
-        return ord($data[$pos]) | (ord($data[$pos + 1]) << 8) | (ord($data[$pos + 2]) << 16) | $ord24;
+        return \ord($data[$pos]) | (\ord($data[$pos + 1]) << 8) | (\ord($data[$pos + 2]) << 16) | $ord24;
     }
 
     /**
@@ -781,7 +781,7 @@ class PowerPoint97 implements ReaderInterface
                                 $char = self::getInt2d($stream, $pos);
                                 $pos += 2;
                                 $exObjList['recLen'] -= 2;
-                                $this->arrayHyperlinks[$exHyperlinkId]['text'] .= chr($char);
+                                $this->arrayHyperlinks[$exHyperlinkId]['text'] .= \chr($char);
                             }
                         }
                         // targetAtom
@@ -794,7 +794,7 @@ class PowerPoint97 implements ReaderInterface
                                 $char = self::getInt2d($stream, $pos);
                                 $pos += 2;
                                 $exObjList['recLen'] -= 2;
-                                $this->arrayHyperlinks[$exHyperlinkId]['url'] .= chr($char);
+                                $this->arrayHyperlinks[$exHyperlinkId]['url'] .= \chr($char);
                             }
                         }
                         // locationAtom
@@ -807,7 +807,7 @@ class PowerPoint97 implements ReaderInterface
                                 $char = self::getInt2d($stream, $pos);
                                 $pos += 2;
                                 $exObjList['recLen'] -= 2;
-                                $string .= chr($char);
+                                $string .= \chr($char);
                             }
                         }
                         break;
@@ -845,7 +845,7 @@ class PowerPoint97 implements ReaderInterface
                         $char = self::getInt2d($stream, $pos);
                         $pos += 2;
                         $fontCollection['recLen'] -= 2;
-                        $string .= chr($char);
+                        $string .= \chr($char);
                     }
                     $this->arrayFonts[] = $string;
 
@@ -1238,7 +1238,7 @@ class PowerPoint97 implements ReaderInterface
                     ++$arrayReturn['length'];
                     --$data['recLen'];
                     // BLIPFileData
-                    $arrayReturn['picture'] = substr($this->streamPictures, $pos + $arrayReturn['length'], $data['recLen']);
+                    $arrayReturn['picture'] = \substr($this->streamPictures, $pos + $arrayReturn['length'], $data['recLen']);
                     $arrayReturn['length'] += $data['recLen'];
                     break;
                 default:
@@ -1431,10 +1431,10 @@ class PowerPoint97 implements ReaderInterface
                         //@link : http://msdn.microsoft.com/en-us/library/dd947973(v=office.12).aspx
                         if (0x0000 == $rhChild['recInstance']) {
                             //@todo : MouseClickTextInteractiveInfoAtom
-                            $arrayReturn['hyperlink'][count($arrayReturn['hyperlink']) - 1]['start'] = self::getInt4d($stream, $pos + +$arrayReturn['length']);
+                            $arrayReturn['hyperlink'][\count($arrayReturn['hyperlink']) - 1]['start'] = self::getInt4d($stream, $pos + +$arrayReturn['length']);
                             $arrayReturn['length'] += 4;
 
-                            $arrayReturn['hyperlink'][count($arrayReturn['hyperlink']) - 1]['end'] = self::getInt4d($stream, $pos + +$arrayReturn['length']);
+                            $arrayReturn['hyperlink'][\count($arrayReturn['hyperlink']) - 1]['end'] = self::getInt4d($stream, $pos + +$arrayReturn['length']);
                             $arrayReturn['length'] += 4;
                         }
                         if (0x0001 == $rhChild['recInstance']) {
@@ -1552,7 +1552,7 @@ class PowerPoint97 implements ReaderInterface
             // Informations about group are not defined
             $arrayDimensions = [];
             $bIsGroup = false;
-            if (is_object($this->oCurrentGroup)) {
+            if (\is_object($this->oCurrentGroup)) {
                 if (!$this->bFirstShapeGroup) {
                     if ($clientAnchor['length'] > 0) {
                         // $this->oCurrentGroup->setOffsetX($clientAnchor['left']);
@@ -1578,7 +1578,7 @@ class PowerPoint97 implements ReaderInterface
                     // isDrawing
                     $drawingPib = $shpPrimaryOptions['pib'];
                     if (isset($this->arrayPictures[$drawingPib - 1])) {
-                        $gdImage = imagecreatefromstring($this->arrayPictures[$drawingPib - 1]);
+                        $gdImage = \imagecreatefromstring($this->arrayPictures[$drawingPib - 1]);
                         $arrayReturn['shape'] = new Drawing\Gd();
                         $arrayReturn['shape']->setImageResource($gdImage);
                     }
@@ -1621,7 +1621,7 @@ class PowerPoint97 implements ReaderInterface
                             }
                         }
                         // Texte
-                        $sText = substr(isset($clientTextbox['text']) ? $clientTextbox['text'] : '', $start, $clientTextbox['part' . $inc]['partLength']);
+                        $sText = \substr(isset($clientTextbox['text']) ? $clientTextbox['text'] : '', $start, $clientTextbox['part' . $inc]['partLength']);
                         $sHyperlinkURL = '';
                         if (empty($sText)) {
                             // Is there a hyperlink ?
@@ -1637,9 +1637,9 @@ class PowerPoint97 implements ReaderInterface
                         }
                         // New paragraph
                         $bCreateParagraph = false;
-                        if (false !== strpos($sText, "\r")) {
+                        if (false !== \strpos($sText, "\r")) {
                             $bCreateParagraph = true;
-                            $sText = str_replace("\r", '', $sText);
+                            $sText = \str_replace("\r", '', $sText);
                         }
                         // TextRun
                         $txtRun = $arrayReturn['shape']->createTextRun($sText);
@@ -1787,10 +1787,10 @@ class PowerPoint97 implements ReaderInterface
                         $data['recLen'] -= $fileBlock['length'];
                         // Core
                         //@todo
-                        if (!is_null($fileBlock['shape'])) {
+                        if (!\is_null($fileBlock['shape'])) {
                             switch ($this->inMainType) {
                                 case self::RT_NOTES:
-                                    $arrayIdxSlide = array_flip($this->arrayNotes);
+                                    $arrayIdxSlide = \array_flip($this->arrayNotes);
                                     if ($this->currentNote > 0 && isset($arrayIdxSlide[$this->currentNote])) {
                                         $oSlide = $this->oPhpPresentation->getSlide($arrayIdxSlide[$this->currentNote]);
                                         if (0 == $oSlide->getNote()->getShapeCollection()->count()) {
@@ -1843,9 +1843,9 @@ class PowerPoint97 implements ReaderInterface
                 $optOp = self::getInt4d($this->streamPowerpointDocument, $pos + $arrayReturn['length']);
                 $arrayReturn['length'] += 4;
                 $officeArtFOPTE[] = [
-                    'opid' => ($opid >> 0) & bindec('11111111111111'),
+                    'opid' => ($opid >> 0) & \bindec('11111111111111'),
-                    'fBid' => ($opid >> 14) & bindec('1'),
+                    'fBid' => ($opid >> 14) & \bindec('1'),
-                    'fComplex' => ($opid >> 15) & bindec('1'),
+                    'fComplex' => ($opid >> 15) & \bindec('1'),
                     'op' => $optOp,
                 ];
             }
@@ -1975,9 +1975,9 @@ class PowerPoint97 implements ReaderInterface
                 $arrayReturn['length'] += 4;
                 $data['recLen'] -= 4;
                 $officeArtFOPTE[] = [
-                    'opid' => ($opid >> 0) & bindec('11111111111111'),
+                    'opid' => ($opid >> 0) & \bindec('11111111111111'),
-                    'fBid' => ($opid >> 14) & bindec('1'),
+                    'fBid' => ($opid >> 14) & \bindec('1'),
-                    'fComplex' => ($opid >> 15) & bindec('1'),
+                    'fComplex' => ($opid >> 15) & \bindec('1'),
                     'op' => $optOp,
                 ];
             }
@@ -2120,17 +2120,17 @@ class PowerPoint97 implements ReaderInterface
                     case 0x0181:
                         // Fill : fillColor
                         //@link : http://msdn.microsoft.com/en-us/library/dd921332(v=office.12).aspx
-                        $strColor = str_pad(dechex(($opt['op'] >> 0) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor = \str_pad(\dechex(($opt['op'] >> 0) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
-                        $strColor .= str_pad(dechex(($opt['op'] >> 8) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor .= \str_pad(\dechex(($opt['op'] >> 8) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
-                        $strColor .= str_pad(dechex(($opt['op'] >> 16) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor .= \str_pad(\dechex(($opt['op'] >> 16) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
                         // echo 'fillColor  : '.$strColor.EOL;
                         break;
                     case 0x0183:
                         // Fill : fillBackColor
                         //@link : http://msdn.microsoft.com/en-us/library/dd950634(v=office.12).aspx
-                        $strColor = str_pad(dechex(($opt['op'] >> 0) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor = \str_pad(\dechex(($opt['op'] >> 0) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
-                        $strColor .= str_pad(dechex(($opt['op'] >> 8) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor .= \str_pad(\dechex(($opt['op'] >> 8) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
-                        $strColor .= str_pad(dechex(($opt['op'] >> 16) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor .= \str_pad(\dechex(($opt['op'] >> 16) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
                         // echo 'fillBackColor  : '.$strColor.EOL;
                         break;
                     case 0x0193:
@@ -2150,9 +2150,9 @@ class PowerPoint97 implements ReaderInterface
                     case 0x01C0:
                         // Line Style : lineColor
                         //@link : http://msdn.microsoft.com/en-us/library/dd920397(v=office.12).aspx
-                        $strColor = str_pad(dechex(($opt['op'] >> 0) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor = \str_pad(\dechex(($opt['op'] >> 0) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
-                        $strColor .= str_pad(dechex(($opt['op'] >> 8) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor .= \str_pad(\dechex(($opt['op'] >> 8) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
-                        $strColor .= str_pad(dechex(($opt['op'] >> 16) & bindec('11111111')), 2, '0', STR_PAD_LEFT);
+                        $strColor .= \str_pad(\dechex(($opt['op'] >> 16) & \bindec('11111111')), 2, '0', STR_PAD_LEFT);
                         $arrayReturn['lineColor'] = $strColor;
                         break;
                     case 0x01C1:
@@ -2277,10 +2277,10 @@ class PowerPoint97 implements ReaderInterface
             // data
             $data = self::getInt4d($this->streamPowerpointDocument, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 4;
-            $arrayReturn['fGroup'] = ($data >> 0) & bindec('1');
+            $arrayReturn['fGroup'] = ($data >> 0) & \bindec('1');
-            $arrayReturn['fChild'] = ($data >> 1) & bindec('1');
+            $arrayReturn['fChild'] = ($data >> 1) & \bindec('1');
-            $arrayReturn['fPatriarch'] = ($data >> 2) & bindec('1');
+            $arrayReturn['fPatriarch'] = ($data >> 2) & \bindec('1');
-            $arrayReturn['fDeleted'] = ($data >> 3) & bindec('1');
+            $arrayReturn['fDeleted'] = ($data >> 3) & \bindec('1');
         }
 
         return $arrayReturn;
@@ -2399,7 +2399,7 @@ class PowerPoint97 implements ReaderInterface
             ];
             do {
                 $dataHeaderRG = $this->loadRecordHeader($stream, $pos + $arrayReturn['length']);
-                if (in_array($dataHeaderRG['recType'], $array)) {
+                if (\in_array($dataHeaderRG['recType'], $array)) {
                     switch ($dataHeaderRG['recType']) {
                         case self::RT_PROGTAGS:
                             $dataRG = $this->readRecordShapeProgTagsContainer($stream, $pos + $arrayReturn['length']);
@@ -2418,7 +2418,7 @@ class PowerPoint97 implements ReaderInterface
                             throw new FeatureNotImplementedException();
                     }
                 }
-            } while (in_array($dataHeaderRG['recType'], $array));
+            } while (\in_array($dataHeaderRG['recType'], $array));
         }
 
         return $arrayReturn;
@@ -2445,7 +2445,7 @@ class PowerPoint97 implements ReaderInterface
             $pos += 4;
             $rHeader['recLen'] -= 4;
             //$persistId  = ($data >> 0) & bindec('11111111111111111111');
-            $cPersist = ($data >> 20) & bindec('111111111111');
+            $cPersist = ($data >> 20) & \bindec('111111111111');
 
             $rgPersistOffset = [];
             for ($inc = 0; $inc < $cPersist; ++$inc) {
@@ -3023,46 +3023,46 @@ class PowerPoint97 implements ReaderInterface
         $arrayReturn['length'] += 4;
 
         $masksData = [];
-        $masksData['bold'] = ($masks >> 0) & bindec('1');
+        $masksData['bold'] = ($masks >> 0) & \bindec('1');
-        $masksData['italic'] = ($masks >> 1) & bindec('1');
+        $masksData['italic'] = ($masks >> 1) & \bindec('1');
-        $masksData['underline'] = ($masks >> 2) & bindec('1');
+        $masksData['underline'] = ($masks >> 2) & \bindec('1');
-        $masksData['unused1'] = ($masks >> 3) & bindec('1');
+        $masksData['unused1'] = ($masks >> 3) & \bindec('1');
-        $masksData['shadow'] = ($masks >> 4) & bindec('1');
+        $masksData['shadow'] = ($masks >> 4) & \bindec('1');
-        $masksData['fehint'] = ($masks >> 5) & bindec('1');
+        $masksData['fehint'] = ($masks >> 5) & \bindec('1');
-        $masksData['unused2'] = ($masks >> 6) & bindec('1');
+        $masksData['unused2'] = ($masks >> 6) & \bindec('1');
-        $masksData['kumi'] = ($masks >> 7) & bindec('1');
+        $masksData['kumi'] = ($masks >> 7) & \bindec('1');
-        $masksData['unused3'] = ($masks >> 8) & bindec('1');
+        $masksData['unused3'] = ($masks >> 8) & \bindec('1');
-        $masksData['emboss'] = ($masks >> 9) & bindec('1');
+        $masksData['emboss'] = ($masks >> 9) & \bindec('1');
-        $masksData['fHasStyle'] = ($masks >> 10) & bindec('1111');
+        $masksData['fHasStyle'] = ($masks >> 10) & \bindec('1111');
-        $masksData['unused4'] = ($masks >> 14) & bindec('11');
+        $masksData['unused4'] = ($masks >> 14) & \bindec('11');
-        $masksData['typeface'] = ($masks >> 16) & bindec('1');
+        $masksData['typeface'] = ($masks >> 16) & \bindec('1');
-        $masksData['size'] = ($masks >> 17) & bindec('1');
+        $masksData['size'] = ($masks >> 17) & \bindec('1');
-        $masksData['color'] = ($masks >> 18) & bindec('1');
+        $masksData['color'] = ($masks >> 18) & \bindec('1');
-        $masksData['position'] = ($masks >> 19) & bindec('1');
+        $masksData['position'] = ($masks >> 19) & \bindec('1');
-        $masksData['pp10ext'] = ($masks >> 20) & bindec('1');
+        $masksData['pp10ext'] = ($masks >> 20) & \bindec('1');
-        $masksData['oldEATypeface'] = ($masks >> 21) & bindec('1');
+        $masksData['oldEATypeface'] = ($masks >> 21) & \bindec('1');
-        $masksData['ansiTypeface'] = ($masks >> 22) & bindec('1');
+        $masksData['ansiTypeface'] = ($masks >> 22) & \bindec('1');
-        $masksData['symbolTypeface'] = ($masks >> 23) & bindec('1');
+        $masksData['symbolTypeface'] = ($masks >> 23) & \bindec('1');
-        $masksData['newEATypeface'] = ($masks >> 24) & bindec('1');
+        $masksData['newEATypeface'] = ($masks >> 24) & \bindec('1');
-        $masksData['csTypeface'] = ($masks >> 25) & bindec('1');
+        $masksData['csTypeface'] = ($masks >> 25) & \bindec('1');
-        $masksData['pp11ext'] = ($masks >> 26) & bindec('1');
+        $masksData['pp11ext'] = ($masks >> 26) & \bindec('1');
         if (1 == $masksData['bold'] || 1 == $masksData['italic'] || 1 == $masksData['underline'] || 1 == $masksData['shadow'] || 1 == $masksData['fehint'] || 1 == $masksData['kumi'] || 1 == $masksData['emboss'] || 1 == $masksData['fHasStyle']) {
             $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 2;
 
             $fontStyleFlags = [];
-            $fontStyleFlags['bold'] = ($data >> 0) & bindec('1');
+            $fontStyleFlags['bold'] = ($data >> 0) & \bindec('1');
-            $fontStyleFlags['italic'] = ($data >> 1) & bindec('1');
+            $fontStyleFlags['italic'] = ($data >> 1) & \bindec('1');
-            $fontStyleFlags['underline'] = ($data >> 2) & bindec('1');
+            $fontStyleFlags['underline'] = ($data >> 2) & \bindec('1');
-            $fontStyleFlags['unused1'] = ($data >> 3) & bindec('1');
+            $fontStyleFlags['unused1'] = ($data >> 3) & \bindec('1');
-            $fontStyleFlags['shadow'] = ($data >> 4) & bindec('1');
+            $fontStyleFlags['shadow'] = ($data >> 4) & \bindec('1');
-            $fontStyleFlags['fehint'] = ($data >> 5) & bindec('1');
+            $fontStyleFlags['fehint'] = ($data >> 5) & \bindec('1');
-            $fontStyleFlags['unused2'] = ($data >> 6) & bindec('1');
+            $fontStyleFlags['unused2'] = ($data >> 6) & \bindec('1');
-            $fontStyleFlags['kumi'] = ($data >> 7) & bindec('1');
+            $fontStyleFlags['kumi'] = ($data >> 7) & \bindec('1');
-            $fontStyleFlags['unused3'] = ($data >> 8) & bindec('1');
+            $fontStyleFlags['unused3'] = ($data >> 8) & \bindec('1');
-            $fontStyleFlags['emboss'] = ($data >> 9) & bindec('1');
+            $fontStyleFlags['emboss'] = ($data >> 9) & \bindec('1');
-            $fontStyleFlags['pp9rt'] = ($data >> 10) & bindec('1111');
+            $fontStyleFlags['pp9rt'] = ($data >> 10) & \bindec('1111');
-            $fontStyleFlags['unused4'] = ($data >> 14) & bindec('11');
+            $fontStyleFlags['unused4'] = ($data >> 14) & \bindec('11');
 
             $arrayReturn['bold'] = (1 == $fontStyleFlags['bold']) ? true : false;
             $arrayReturn['italic'] = (1 == $fontStyleFlags['italic']) ? true : false;
@@ -3100,9 +3100,9 @@ class PowerPoint97 implements ReaderInterface
             ++$arrayReturn['length'];
 
             if (0xFE == $index) {
-                $strColor = str_pad(dechex($red), 2, '0', STR_PAD_LEFT);
+                $strColor = \str_pad(\dechex($red), 2, '0', STR_PAD_LEFT);
-                $strColor .= str_pad(dechex($green), 2, '0', STR_PAD_LEFT);
+                $strColor .= \str_pad(\dechex($green), 2, '0', STR_PAD_LEFT);
-                $strColor .= str_pad(dechex($blue), 2, '0', STR_PAD_LEFT);
+                $strColor .= \str_pad(\dechex($blue), 2, '0', STR_PAD_LEFT);
 
                 $arrayReturn['color'] = new Color('FF' . $strColor);
             }
@@ -3142,47 +3142,47 @@ class PowerPoint97 implements ReaderInterface
         $arrayReturn['length'] += 4;
 
         $masksData = [];
-        $masksData['hasBullet'] = ($masks >> 0) & bindec('1');
+        $masksData['hasBullet'] = ($masks >> 0) & \bindec('1');
-        $masksData['bulletHasFont'] = ($masks >> 1) & bindec('1');
+        $masksData['bulletHasFont'] = ($masks >> 1) & \bindec('1');
-        $masksData['bulletHasColor'] = ($masks >> 2) & bindec('1');
+        $masksData['bulletHasColor'] = ($masks >> 2) & \bindec('1');
-        $masksData['bulletHasSize'] = ($masks >> 3) & bindec('1');
+        $masksData['bulletHasSize'] = ($masks >> 3) & \bindec('1');
-        $masksData['bulletFont'] = ($masks >> 4) & bindec('1');
+        $masksData['bulletFont'] = ($masks >> 4) & \bindec('1');
-        $masksData['bulletColor'] = ($masks >> 5) & bindec('1');
+        $masksData['bulletColor'] = ($masks >> 5) & \bindec('1');
-        $masksData['bulletSize'] = ($masks >> 6) & bindec('1');
+        $masksData['bulletSize'] = ($masks >> 6) & \bindec('1');
-        $masksData['bulletChar'] = ($masks >> 7) & bindec('1');
+        $masksData['bulletChar'] = ($masks >> 7) & \bindec('1');
-        $masksData['leftMargin'] = ($masks >> 8) & bindec('1');
+        $masksData['leftMargin'] = ($masks >> 8) & \bindec('1');
-        $masksData['unused'] = ($masks >> 9) & bindec('1');
+        $masksData['unused'] = ($masks >> 9) & \bindec('1');
-        $masksData['indent'] = ($masks >> 10) & bindec('1');
+        $masksData['indent'] = ($masks >> 10) & \bindec('1');
-        $masksData['align'] = ($masks >> 11) & bindec('1');
+        $masksData['align'] = ($masks >> 11) & \bindec('1');
-        $masksData['lineSpacing'] = ($masks >> 12) & bindec('1');
+        $masksData['lineSpacing'] = ($masks >> 12) & \bindec('1');
-        $masksData['spaceBefore'] = ($masks >> 13) & bindec('1');
+        $masksData['spaceBefore'] = ($masks >> 13) & \bindec('1');
-        $masksData['spaceAfter'] = ($masks >> 14) & bindec('1');
+        $masksData['spaceAfter'] = ($masks >> 14) & \bindec('1');
-        $masksData['defaultTabSize'] = ($masks >> 15) & bindec('1');
+        $masksData['defaultTabSize'] = ($masks >> 15) & \bindec('1');
-        $masksData['fontAlign'] = ($masks >> 16) & bindec('1');
+        $masksData['fontAlign'] = ($masks >> 16) & \bindec('1');
-        $masksData['charWrap'] = ($masks >> 17) & bindec('1');
+        $masksData['charWrap'] = ($masks >> 17) & \bindec('1');
-        $masksData['wordWrap'] = ($masks >> 18) & bindec('1');
+        $masksData['wordWrap'] = ($masks >> 18) & \bindec('1');
-        $masksData['overflow'] = ($masks >> 19) & bindec('1');
+        $masksData['overflow'] = ($masks >> 19) & \bindec('1');
-        $masksData['tabStops'] = ($masks >> 20) & bindec('1');
+        $masksData['tabStops'] = ($masks >> 20) & \bindec('1');
-        $masksData['textDirection'] = ($masks >> 21) & bindec('1');
+        $masksData['textDirection'] = ($masks >> 21) & \bindec('1');
-        $masksData['reserved1'] = ($masks >> 22) & bindec('1');
+        $masksData['reserved1'] = ($masks >> 22) & \bindec('1');
-        $masksData['bulletBlip'] = ($masks >> 23) & bindec('1');
+        $masksData['bulletBlip'] = ($masks >> 23) & \bindec('1');
-        $masksData['bulletScheme'] = ($masks >> 24) & bindec('1');
+        $masksData['bulletScheme'] = ($masks >> 24) & \bindec('1');
-        $masksData['bulletHasScheme'] = ($masks >> 25) & bindec('1');
+        $masksData['bulletHasScheme'] = ($masks >> 25) & \bindec('1');
 
         $bulletFlags = [];
         if (1 == $masksData['hasBullet'] || 1 == $masksData['bulletHasFont'] || 1 == $masksData['bulletHasColor'] || 1 == $masksData['bulletHasSize']) {
             $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 2;
 
-            $bulletFlags['fHasBullet'] = ($data >> 0) & bindec('1');
+            $bulletFlags['fHasBullet'] = ($data >> 0) & \bindec('1');
-            $bulletFlags['fBulletHasFont'] = ($data >> 1) & bindec('1');
+            $bulletFlags['fBulletHasFont'] = ($data >> 1) & \bindec('1');
-            $bulletFlags['fBulletHasColor'] = ($data >> 2) & bindec('1');
+            $bulletFlags['fBulletHasColor'] = ($data >> 2) & \bindec('1');
-            $bulletFlags['fBulletHasSize'] = ($data >> 3) & bindec('1');
+            $bulletFlags['fBulletHasSize'] = ($data >> 3) & \bindec('1');
         }
         if (1 == $masksData['bulletChar']) {
             $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 2;
-            $arrayReturn['bulletChar'] = chr($data);
+            $arrayReturn['bulletChar'] = \chr($data);
         }
         if (1 == $masksData['bulletFont']) {
             // $data = self::getInt2d($stream, $pos);
@@ -3252,12 +3252,12 @@ class PowerPoint97 implements ReaderInterface
         if (1 == $masksData['leftMargin']) {
             $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 2;
-            $arrayReturn['leftMargin'] = (int) round($data / 6);
+            $arrayReturn['leftMargin'] = (int) \round($data / 6);
         }
         if (1 == $masksData['indent']) {
             $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 2;
-            $arrayReturn['indent'] = (int) round($data / 6);
+            $arrayReturn['indent'] = (int) \round($data / 6);
         }
         if (1 == $masksData['defaultTabSize']) {
             // $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
@@ -3303,24 +3303,24 @@ class PowerPoint97 implements ReaderInterface
         $data = self::getInt4d($stream, $pos + $arrayReturn['length']);
         $arrayReturn['length'] += 4;
         $masksData = [];
-        $masksData['spell'] = ($data >> 0) & bindec('1');
+        $masksData['spell'] = ($data >> 0) & \bindec('1');
-        $masksData['lang'] = ($data >> 1) & bindec('1');
+        $masksData['lang'] = ($data >> 1) & \bindec('1');
-        $masksData['altLang'] = ($data >> 2) & bindec('1');
+        $masksData['altLang'] = ($data >> 2) & \bindec('1');
-        $masksData['unused1'] = ($data >> 3) & bindec('1');
+        $masksData['unused1'] = ($data >> 3) & \bindec('1');
-        $masksData['unused2'] = ($data >> 4) & bindec('1');
+        $masksData['unused2'] = ($data >> 4) & \bindec('1');
-        $masksData['fPp10ext'] = ($data >> 5) & bindec('1');
+        $masksData['fPp10ext'] = ($data >> 5) & \bindec('1');
-        $masksData['fBidi'] = ($data >> 6) & bindec('1');
+        $masksData['fBidi'] = ($data >> 6) & \bindec('1');
-        $masksData['unused3'] = ($data >> 7) & bindec('1');
+        $masksData['unused3'] = ($data >> 7) & \bindec('1');
-        $masksData['reserved1'] = ($data >> 8) & bindec('1');
+        $masksData['reserved1'] = ($data >> 8) & \bindec('1');
-        $masksData['smartTag'] = ($data >> 9) & bindec('1');
+        $masksData['smartTag'] = ($data >> 9) & \bindec('1');
 
         if (1 == $masksData['spell']) {
             $data = self::getInt2d($stream, $pos + $arrayReturn['length']);
             $arrayReturn['length'] += 2;
             $masksSpell = [];
-            $masksSpell['error'] = ($data >> 0) & bindec('1');
+            $masksSpell['error'] = ($data >> 0) & \bindec('1');
-            $masksSpell['clean'] = ($data >> 1) & bindec('1');
+            $masksSpell['clean'] = ($data >> 1) & \bindec('1');
-            $masksSpell['grammar'] = ($data >> 2) & bindec('1');
+            $masksSpell['grammar'] = ($data >> 2) & \bindec('1');
         }
         if (1 == $masksData['lang']) {
             // $data = self::getInt2d($stream, $pos);
@@ -3362,19 +3362,19 @@ class PowerPoint97 implements ReaderInterface
         $arrayReturn['length'] += 4;
 
         $masksData = [];
-        $masksData['fDefaultTabSize'] = ($data >> 0) & bindec('1');
+        $masksData['fDefaultTabSize'] = ($data >> 0) & \bindec('1');
-        $masksData['fCLevels'] = ($data >> 1) & bindec('1');
+        $masksData['fCLevels'] = ($data >> 1) & \bindec('1');
-        $masksData['fTabStops'] = ($data >> 2) & bindec('1');
+        $masksData['fTabStops'] = ($data >> 2) & \bindec('1');
-        $masksData['fLeftMargin1'] = ($data >> 3) & bindec('1');
+        $masksData['fLeftMargin1'] = ($data >> 3) & \bindec('1');
-        $masksData['fLeftMargin2'] = ($data >> 4) & bindec('1');
+        $masksData['fLeftMargin2'] = ($data >> 4) & \bindec('1');
-        $masksData['fLeftMargin3'] = ($data >> 5) & bindec('1');
+        $masksData['fLeftMargin3'] = ($data >> 5) & \bindec('1');
-        $masksData['fLeftMargin4'] = ($data >> 6) & bindec('1');
+        $masksData['fLeftMargin4'] = ($data >> 6) & \bindec('1');
-        $masksData['fLeftMargin5'] = ($data >> 7) & bindec('1');
+        $masksData['fLeftMargin5'] = ($data >> 7) & \bindec('1');
-        $masksData['fIndent1'] = ($data >> 8) & bindec('1');
+        $masksData['fIndent1'] = ($data >> 8) & \bindec('1');
-        $masksData['fIndent2'] = ($data >> 9) & bindec('1');
+        $masksData['fIndent2'] = ($data >> 9) & \bindec('1');
-        $masksData['fIndent3'] = ($data >> 10) & bindec('1');
+        $masksData['fIndent3'] = ($data >> 10) & \bindec('1');
-        $masksData['fIndent4'] = ($data >> 11) & bindec('1');
+        $masksData['fIndent4'] = ($data >> 11) & \bindec('1');
-        $masksData['fIndent5'] = ($data >> 12) & bindec('1');
+        $masksData['fIndent5'] = ($data >> 12) & \bindec('1');
 
         if (1 == $masksData['fCLevels']) {
             throw new FeatureNotImplementedException();

PhpOffice/PhpPresentation/Reader/Serialized.php

@@ -49,7 +49,7 @@ class Serialized implements ReaderInterface
     public function fileSupportsUnserializePhpPresentation(string $pFilename): bool
     {
         // Check if file exists
-        if (!file_exists($pFilename)) {
+        if (!\file_exists($pFilename)) {
             throw new FileNotFoundException($pFilename);
         }
 
@@ -66,7 +66,7 @@ class Serialized implements ReaderInterface
     public function load(string $pFilename): PhpPresentation
     {
         // Check if file exists
-        if (!file_exists($pFilename)) {
+        if (!\file_exists($pFilename)) {
             throw new FileNotFoundException($pFilename);
         }
 
@@ -85,7 +85,7 @@ class Serialized implements ReaderInterface
      */
     private function loadSerialized(string $pFilename): PhpPresentation
     {
-        $oArchive = new ZipArchive();
+        $oArchive = new \ZipArchive();
         if (true !== $oArchive->open($pFilename)) {
             throw new InvalidFileFormatException($pFilename, Serialized::class);
         }
@@ -95,15 +95,15 @@ class Serialized implements ReaderInterface
             throw new InvalidFileFormatException($pFilename, Serialized::class, 'The file PhpPresentation.xml is malformed');
         }
 
-        $xmlData = simplexml_load_string($xmlContent);
+        $xmlData = \simplexml_load_string($xmlContent);
-        $file = unserialize(base64_decode((string) $xmlData->data));
+        $file = \unserialize(\base64_decode((string) $xmlData->data));
 
         // Update media links
         for ($i = 0; $i < $file->getSlideCount(); ++$i) {
             for ($j = 0; $j < $file->getSlide($i)->getShapeCollection()->count(); ++$j) {
                 if ($file->getSlide($i)->getShapeCollection()->offsetGet($j) instanceof AbstractDrawingAdapter) {
                     $imgTemp = $file->getSlide($i)->getShapeCollection()->offsetGet($j);
-                    $imgPath = 'zip://' . $pFilename . '#media/' . $imgTemp->getImageIndex() . '/' . pathinfo($imgTemp->getPath(), PATHINFO_BASENAME);
+                    $imgPath = 'zip://' . $pFilename . '#media/' . $imgTemp->getImageIndex() . '/' . \pathinfo($imgTemp->getPath(), PATHINFO_BASENAME);
                     if ($imgTemp instanceof DrawingFile) {
                         $imgTemp->setPath($imgPath, false);
                     } else {

PhpOffice/PhpPresentation/Shape/AbstractGraphic.php

@@ -164,7 +164,7 @@ abstract class AbstractGraphic extends AbstractShape implements ComparableInterf
         // Resize proportional?
         if ($this->resizeProportional && 0 != $pValue && 0 != $this->width) {
             $ratio = $this->height / $this->width;
-            $this->height = (int) round($ratio * $pValue);
+            $this->height = (int) \round($ratio * $pValue);
         }
 
         // Set width
@@ -183,7 +183,7 @@ abstract class AbstractGraphic extends AbstractShape implements ComparableInterf
         // Resize proportional?
         if ($this->resizeProportional && 0 != $pValue && 0 != $this->height) {
             $ratio = $this->width / $this->height;
-            $this->width = (int) round($ratio * $pValue);
+            $this->width = (int) \round($ratio * $pValue);
         }
 
         // Set height
@@ -205,10 +205,10 @@ abstract class AbstractGraphic extends AbstractShape implements ComparableInterf
         $yratio = $height / $this->height;
         if ($this->resizeProportional && !(0 == $width || 0 == $height)) {
             if (($xratio * $this->height) < $height) {
-                $this->height = (int) ceil($xratio * $this->height);
+                $this->height = (int) \ceil($xratio * $this->height);
                 $this->width = $width;
             } else {
-                $this->width = (int) ceil($yratio * $this->width);
+                $this->width = (int) \ceil($yratio * $this->width);
                 $this->height = $height;
             }
         }
@@ -245,6 +245,6 @@ abstract class AbstractGraphic extends AbstractShape implements ComparableInterf
      */
     public function getHashCode(): string
     {
-        return md5($this->name . $this->description . parent::getHashCode() . __CLASS__);
+        return \md5($this->name . $this->description . parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart.php

@@ -171,7 +171,7 @@ class Chart extends AbstractGraphic implements ComparableInterface
      */
     public function setDisplayBlankAs(string $value): self
     {
-        if (in_array($value, [self::BLANKAS_GAP, self::BLANKAS_SPAN, self::BLANKAS_ZERO])) {
+        if (\in_array($value, [self::BLANKAS_GAP, self::BLANKAS_SPAN, self::BLANKAS_ZERO])) {
             $this->displayBlankAs = $value;
         }
 
@@ -209,6 +209,6 @@ class Chart extends AbstractGraphic implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(parent::getHashCode() . $this->title->getHashCode() . $this->legend->getHashCode() . $this->plotArea->getHashCode() . $this->view3D->getHashCode() . ($this->includeSpreadsheet ? 1 : 0) . __CLASS__);
+        return \md5(parent::getHashCode() . $this->title->getHashCode() . $this->legend->getHashCode() . $this->plotArea->getHashCode() . $this->view3D->getHashCode() . ($this->includeSpreadsheet ? 1 : 0) . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Axis.php

@@ -232,7 +232,7 @@ class Axis implements ComparableInterface
      */
     public function setMinBounds(int $minBounds = null): self
     {
-        $this->minBounds = is_null($minBounds) ? null : $minBounds;
+        $this->minBounds = \is_null($minBounds) ? null : $minBounds;
 
         return $this;
     }
@@ -252,7 +252,7 @@ class Axis implements ComparableInterface
      */
     public function setMaxBounds(int $maxBounds = null): self
     {
-        $this->maxBounds = is_null($maxBounds) ? null : $maxBounds;
+        $this->maxBounds = \is_null($maxBounds) ? null : $maxBounds;
 
         return $this;
     }
@@ -454,7 +454,7 @@ class Axis implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->title . $this->formatCode . __CLASS__);
+        return \md5($this->title . $this->formatCode . __CLASS__);
     }
 
     /**
@@ -533,7 +533,7 @@ class Axis implements ComparableInterface
      */
     public function setTickLabelPosition(string $value = self::TICK_LABEL_POSITION_NEXT_TO): self
     {
-        if (in_array($value, [
+        if (\in_array($value, [
             self::TICK_LABEL_POSITION_HIGH,
             self::TICK_LABEL_POSITION_LOW,
             self::TICK_LABEL_POSITION_NEXT_TO,

PhpOffice/PhpPresentation/Shape/Chart/Legend.php

@@ -332,7 +332,7 @@ class Legend implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->position . $this->offsetX . $this->offsetY . $this->width . $this->height . $this->font->getHashCode() . $this->border->getHashCode() . $this->fill->getHashCode() . $this->alignment->getHashCode() . ($this->visible ? 't' : 'f') . __CLASS__);
+        return \md5($this->position . $this->offsetX . $this->offsetY . $this->width . $this->height . $this->font->getHashCode() . $this->border->getHashCode() . $this->fill->getHashCode() . $this->alignment->getHashCode() . ($this->visible ? 't' : 'f') . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Chart/PlotArea.php

@@ -95,7 +95,7 @@ class PlotArea implements ComparableInterface
      */
     public function getType(): AbstractType
     {
-        if (is_null($this->type)) {
+        if (\is_null($this->type)) {
             throw new UndefinedChartTypeException();
         }
 
@@ -208,7 +208,7 @@ class PlotArea implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5((is_null($this->type) ? 'null' : $this->type->getHashCode()) . $this->axisX->getHashCode() . $this->axisY->getHashCode() . $this->offsetX . $this->offsetY . $this->width . $this->height . __CLASS__);
+        return \md5((\is_null($this->type) ? 'null' : $this->type->getHashCode()) . $this->axisX->getHashCode() . $this->axisY->getHashCode() . $this->offsetX . $this->offsetY . $this->width . $this->height . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Chart/Series.php

@@ -369,7 +369,7 @@ class Series implements ComparableInterface
 
     public function hasShowSeparator(): bool
     {
-        return !is_null($this->separator);
+        return !\is_null($this->separator);
     }
 
     public function setSeparator(?string $pValue): self
@@ -477,7 +477,7 @@ class Series implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5((is_null($this->fill) ? 'null' : $this->fill->getHashCode()) . (is_null($this->font) ? 'null' : $this->font->getHashCode()) . var_export($this->values, true) . var_export($this, true) . __CLASS__);
+        return \md5((\is_null($this->fill) ? 'null' : $this->fill->getHashCode()) . (\is_null($this->font) ? 'null' : $this->font->getHashCode()) . \var_export($this->values, true) . \var_export($this, true) . __CLASS__);
     }
 
     /**
@@ -515,7 +515,7 @@ class Series implements ComparableInterface
     {
         $this->font = clone $this->font;
         $this->marker = clone $this->marker;
-        if (is_object($this->outline)) {
+        if (\is_object($this->outline)) {
             $this->outline = clone $this->outline;
         }
     }

PhpOffice/PhpPresentation/Shape/Chart/Title.php

@@ -272,7 +272,7 @@ class Title implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->text . $this->offsetX . $this->offsetY . $this->width . $this->height . $this->font->getHashCode() . $this->alignment->getHashCode() . ($this->visible ? 't' : 'f') . __CLASS__);
+        return \md5($this->text . $this->offsetX . $this->offsetY . $this->width . $this->height . $this->font->getHashCode() . $this->alignment->getHashCode() . ($this->visible ? 't' : 'f') . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Chart/Type/AbstractTypeLine.php

@@ -60,6 +60,6 @@ class AbstractTypeLine extends AbstractType
      */
     public function getHashCode(): string
     {
-        return md5($this->isSmooth() ? '1' : '0');
+        return \md5($this->isSmooth() ? '1' : '0');
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Area.php

@@ -39,6 +39,6 @@ class Area extends AbstractType implements ComparableInterface
             $hash .= $series->getHashCode();
         }
 
-        return md5($hash . __CLASS__);
+        return \md5($hash . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Bar.php

@@ -34,6 +34,6 @@ class Bar extends AbstractTypeBar implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(parent::getHashCode() . __CLASS__);
+        return \md5(parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Bar3D.php

@@ -34,6 +34,6 @@ class Bar3D extends AbstractTypeBar implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(parent::getHashCode() . __CLASS__);
+        return \md5(parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Doughnut.php

@@ -69,6 +69,6 @@ class Doughnut extends AbstractTypePie implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(parent::getHashCode() . __CLASS__);
+        return \md5(parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Line.php

@@ -36,6 +36,6 @@ class Line extends AbstractTypeLine implements ComparableInterface
             $hash .= $series->getHashCode();
         }
 
-        return md5(parent::getHashCode() . $hash . __CLASS__);
+        return \md5(parent::getHashCode() . $hash . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Pie.php

@@ -34,6 +34,6 @@ class Pie extends AbstractTypePie implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(parent::getHashCode() . __CLASS__);
+        return \md5(parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Pie3D.php

@@ -34,6 +34,6 @@ class Pie3D extends AbstractTypePie implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(parent::getHashCode() . __CLASS__);
+        return \md5(parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Radar.php

@@ -36,6 +36,6 @@ class Radar extends AbstractType implements ComparableInterface
             $hash .= $series->getHashCode();
         }
 
-        return md5($hash . __CLASS__);
+        return \md5($hash . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/Type/Scatter.php

@@ -36,6 +36,6 @@ class Scatter extends AbstractTypeLine implements ComparableInterface
             $hash .= $series->getHashCode();
         }
 
-        return md5(parent::getHashCode() . $hash . __CLASS__);
+        return \md5(parent::getHashCode() . $hash . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Chart/View3D.php

@@ -228,7 +228,7 @@ class View3D implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->rotationX . $this->rotationY . ($this->rightAngleAxes ? 't' : 'f') . $this->perspective . $this->heightPercent . $this->depthPercent . __CLASS__);
+        return \md5($this->rotationX . $this->rotationY . ($this->rightAngleAxes ? 't' : 'f') . $this->perspective . $this->heightPercent . $this->depthPercent . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Comment.php

@@ -47,7 +47,7 @@ class Comment extends AbstractShape implements ComparableInterface
     public function __construct()
     {
         parent::__construct();
-        $this->setDate(time());
+        $this->setDate(\time());
     }
 
     public function getAuthor(): ?Author

PhpOffice/PhpPresentation/Shape/Comment/Author.php

@@ -104,6 +104,6 @@ class Author
      */
     public function getHashCode(): string
     {
-        return md5($this->getInitials() . $this->getName() . __CLASS__);
+        return \md5($this->getInitials() . $this->getName() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Drawing/Base64.php

@@ -57,7 +57,7 @@ class Base64 extends AbstractDrawingAdapter
     public function __construct()
     {
         parent::__construct();
-        $this->uniqueName = md5(rand(0, 9999) . time() . rand(0, 9999));
+        $this->uniqueName = \md5(\rand(0, 9999) . \time() . \rand(0, 9999));
         $this->data = '';
     }
 
@@ -75,10 +75,10 @@ class Base64 extends AbstractDrawingAdapter
 
     public function getContents(): string
     {
-        list(, $imageContents) = explode(';', $this->getData());
+        list(, $imageContents) = \explode(';', $this->getData());
-        list(, $imageContents) = explode(',', $imageContents);
+        list(, $imageContents) = \explode(',', $imageContents);
 
-        return base64_decode($imageContents);
+        return \base64_decode($imageContents);
     }
 
     /**
@@ -86,10 +86,10 @@ class Base64 extends AbstractDrawingAdapter
      */
     public function getExtension(): string
     {
-        list($data) = explode(';', $this->getData());
+        list($data) = \explode(';', $this->getData());
-        list(, $mime) = explode(':', $data);
+        list(, $mime) = \explode(':', $data);
 
-        if (!array_key_exists($mime, $this->arrayMimeExtension)) {
+        if (!\array_key_exists($mime, $this->arrayMimeExtension)) {
             throw new UnauthorizedMimetypeException($mime, $this->arrayMimeExtension);
         }
 
@@ -103,22 +103,22 @@ class Base64 extends AbstractDrawingAdapter
 
     public function getMimeType(): string
     {
-        list($data) = explode(';', $this->getData());
+        list($data) = \explode(';', $this->getData());
-        list(, $mime) = explode(':', $data);
+        list(, $mime) = \explode(':', $data);
 
         if (!empty($mime)) {
             return $mime;
         }
 
         $sImage = $this->getContents();
-        if (!function_exists('getimagesizefromstring')) {
+        if (!\function_exists('getimagesizefromstring')) {
-            $uri = 'data://application/octet-stream;base64,' . base64_encode($sImage);
+            $uri = 'data://application/octet-stream;base64,' . \base64_encode($sImage);
-            $image = getimagesize($uri);
+            $image = \getimagesize($uri);
         } else {
-            $image = getimagesizefromstring($sImage);
+            $image = \getimagesizefromstring($sImage);
         }
 
-        return image_type_to_mime_type($image[2]);
+        return \image_type_to_mime_type($image[2]);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Drawing/File.php

@@ -51,7 +51,7 @@ class File extends AbstractDrawingAdapter
     public function setPath(string $pValue = '', bool $pVerifyFile = true): self
     {
         if ($pVerifyFile) {
-            if (!file_exists($pValue)) {
+            if (!\file_exists($pValue)) {
                 throw new FileNotFoundException($pValue);
             }
         }
@@ -59,7 +59,7 @@ class File extends AbstractDrawingAdapter
 
         if ($pVerifyFile) {
             if (0 == $this->width && 0 == $this->height) {
-                list($this->width, $this->height) = getimagesize($this->getPath());
+                list($this->width, $this->height) = \getimagesize($this->getPath());
             }
         }
 
@@ -73,7 +73,7 @@ class File extends AbstractDrawingAdapter
 
     public function getExtension(): string
     {
-        return pathinfo($this->getPath(), PATHINFO_EXTENSION);
+        return \pathinfo($this->getPath(), PATHINFO_EXTENSION);
     }
 
     /**
@@ -84,21 +84,21 @@ class File extends AbstractDrawingAdapter
         if (!CommonFile::fileExists($this->getPath())) {
             throw new FileNotFoundException($this->getPath());
         }
-        $image = getimagesizefromstring(CommonFile::fileGetContents($this->getPath()));
+        $image = \getimagesizefromstring(CommonFile::fileGetContents($this->getPath()));
 
-        if (is_array($image)) {
+        if (\is_array($image)) {
-            return image_type_to_mime_type($image[2]);
+            return \image_type_to_mime_type($image[2]);
         }
 
-        return mime_content_type($this->getPath());
+        return \mime_content_type($this->getPath());
     }
 
     public function getIndexedFilename(): string
     {
-        $output = str_replace('.' . $this->getExtension(), '', pathinfo($this->getPath(), PATHINFO_FILENAME));
+        $output = \str_replace('.' . $this->getExtension(), '', \pathinfo($this->getPath(), PATHINFO_FILENAME));
         $output .= $this->getImageIndex();
         $output .= '.' . $this->getExtension();
-        $output = str_replace(' ', '_', $output);
+        $output = \str_replace(' ', '_', $output);
 
         return $output;
     }

PhpOffice/PhpPresentation/Shape/Drawing/Gd.php

@@ -68,7 +68,7 @@ class Gd extends AbstractDrawingAdapter
     public function __construct()
     {
         parent::__construct();
-        $this->uniqueName = md5(rand(0, 9999) . time() . rand(0, 9999));
+        $this->uniqueName = \md5(\rand(0, 9999) . \time() . \rand(0, 9999));
     }
 
     /**
@@ -92,10 +92,10 @@ class Gd extends AbstractDrawingAdapter
     {
         $this->imageResource = $value;
 
-        if (!is_null($this->imageResource)) {
+        if (!\is_null($this->imageResource)) {
             // Get width/height
-            $this->width = imagesx($this->imageResource);
+            $this->width = \imagesx($this->imageResource);
-            $this->height = imagesy($this->imageResource);
+            $this->height = \imagesy($this->imageResource);
         }
 
         return $this;
@@ -149,22 +149,22 @@ class Gd extends AbstractDrawingAdapter
 
     public function getContents(): string
     {
-        ob_start();
+        \ob_start();
         if (self::MIMETYPE_DEFAULT === $this->getMimeType()) {
-            imagealphablending($this->getImageResource(), false);
+            \imagealphablending($this->getImageResource(), false);
-            imagesavealpha($this->getImageResource(), true);
+            \imagesavealpha($this->getImageResource(), true);
         }
-        call_user_func($this->getRenderingFunction(), $this->getImageResource());
+        \call_user_func($this->getRenderingFunction(), $this->getImageResource());
-        $imageContents = ob_get_contents();
+        $imageContents = \ob_get_contents();
-        ob_end_clean();
+        \ob_end_clean();
 
         return $imageContents;
     }
 
     public function getExtension(): string
     {
-        $extension = strtolower($this->getMimeType());
+        $extension = \strtolower($this->getMimeType());
-        $extension = explode('/', $extension);
+        $extension = \explode('/', $extension);
         $extension = $extension[1];
 
         return $extension;

PhpOffice/PhpPresentation/Shape/Drawing/ZipFile.php

@@ -72,7 +72,7 @@ class ZipFile extends AbstractDrawingAdapter
 
     public function getExtension(): string
     {
-        return pathinfo($this->getZipFileIn(), PATHINFO_EXTENSION);
+        return \pathinfo($this->getZipFileIn(), PATHINFO_EXTENSION);
     }
 
     /**
@@ -85,39 +85,39 @@ class ZipFile extends AbstractDrawingAdapter
         }
         $oArchive = new \ZipArchive();
         $oArchive->open($this->getZipFileOut());
-        if (!function_exists('getimagesizefromstring')) {
+        if (!\function_exists('getimagesizefromstring')) {
-            $uri = 'data://application/octet-stream;base64,' . base64_encode($oArchive->getFromName($this->getZipFileIn()));
+            $uri = 'data://application/octet-stream;base64,' . \base64_encode($oArchive->getFromName($this->getZipFileIn()));
-            $image = getimagesize($uri);
+            $image = \getimagesize($uri);
         } else {
-            $image = getimagesizefromstring($oArchive->getFromName($this->getZipFileIn()));
+            $image = \getimagesizefromstring($oArchive->getFromName($this->getZipFileIn()));
         }
 
-        return image_type_to_mime_type($image[2]);
+        return \image_type_to_mime_type($image[2]);
     }
 
     public function getIndexedFilename(): string
     {
-        $output = pathinfo($this->getZipFileIn(), PATHINFO_FILENAME);
+        $output = \pathinfo($this->getZipFileIn(), PATHINFO_FILENAME);
-        $output = str_replace('.' . $this->getExtension(), '', $output);
+        $output = \str_replace('.' . $this->getExtension(), '', $output);
         $output .= $this->getImageIndex();
         $output .= '.' . $this->getExtension();
-        $output = str_replace(' ', '_', $output);
+        $output = \str_replace(' ', '_', $output);
 
         return $output;
     }
 
     protected function getZipFileOut(): string
     {
-        $path = str_replace('zip://', '', $this->getPath());
+        $path = \str_replace('zip://', '', $this->getPath());
-        $path = explode('#', $path);
+        $path = \explode('#', $path);
 
         return empty($path[0]) ? '' : $path[0];
     }
 
     protected function getZipFileIn(): string
     {
-        $path = str_replace('zip://', '', $this->getPath());
+        $path = \str_replace('zip://', '', $this->getPath());
-        $path = explode('#', $path);
+        $path = \explode('#', $path);
 
         return empty($path[1]) ? '' : $path[1];
     }

PhpOffice/PhpPresentation/Shape/Group.php

@@ -30,7 +30,7 @@ class Group extends AbstractShape implements ShapeContainerInterface
     /**
      * Collection of shapes.
      *
-     * @var array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @var array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     private $shapeCollection;
 
@@ -53,13 +53,13 @@ class Group extends AbstractShape implements ShapeContainerInterface
         parent::__construct();
 
         // Shape collection
-        $this->shapeCollection = new ArrayObject();
+        $this->shapeCollection = new \ArrayObject();
     }
 
     /**
      * Get collection of shapes.
      *
-     * @return array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @return array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     public function getShapeCollection()
     {

PhpOffice/PhpPresentation/Shape/Hyperlink.php

@@ -159,7 +159,7 @@ class Hyperlink
      */
     public function isInternal(): bool
     {
-        return false !== strpos($this->url, 'ppaction://');
+        return false !== \strpos($this->url, 'ppaction://');
     }
 
     /**
@@ -169,7 +169,7 @@ class Hyperlink
      */
     public function getHashCode(): string
     {
-        return md5($this->url . $this->tooltip . __CLASS__);
+        return \md5($this->url . $this->tooltip . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Line.php

@@ -55,6 +55,6 @@ class Line extends AbstractShape implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->getBorder()->getLineStyle() . parent::getHashCode() . __CLASS__);
+        return \md5($this->getBorder()->getLineStyle() . parent::getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Media.php

@@ -30,7 +30,7 @@ class Media extends File implements ComparableInterface
 {
     public function getMimeType(): string
     {
-        switch (strtolower($this->getExtension())) {
+        switch (\strtolower($this->getExtension())) {
             case 'mp4':
                 $mimetype = 'video/mp4';
                 break;

PhpOffice/PhpPresentation/Shape/RichText.php

@@ -207,8 +207,8 @@ class RichText extends AbstractShape implements ComparableInterface
      */
     public function setActiveParagraph(int $index = 0): Paragraph
     {
-        if ($index >= count($this->richTextParagraphs)) {
+        if ($index >= \count($this->richTextParagraphs)) {
-            throw new OutOfBoundsException(0, count($this->richTextParagraphs), $index);
+            throw new OutOfBoundsException(0, \count($this->richTextParagraphs), $index);
         }
 
         $this->activeParagraph = $index;
@@ -223,8 +223,8 @@ class RichText extends AbstractShape implements ComparableInterface
      */
     public function getParagraph(int $index = 0): Paragraph
     {
-        if ($index >= count($this->richTextParagraphs)) {
+        if ($index >= \count($this->richTextParagraphs)) {
-            throw new OutOfBoundsException(0, count($this->richTextParagraphs), $index);
+            throw new OutOfBoundsException(0, \count($this->richTextParagraphs), $index);
         }
 
         return $this->richTextParagraphs[$index];
@@ -235,7 +235,7 @@ class RichText extends AbstractShape implements ComparableInterface
      */
     public function createParagraph(): Paragraph
     {
-        $numParagraphs = count($this->richTextParagraphs);
+        $numParagraphs = \count($this->richTextParagraphs);
         if ($numParagraphs > 0) {
             $alignment = clone $this->getActiveParagraph()->getAlignment();
             $font = clone $this->getActiveParagraph()->getFont();
@@ -243,7 +243,7 @@ class RichText extends AbstractShape implements ComparableInterface
         }
 
         $this->richTextParagraphs[] = new Paragraph();
-        $this->activeParagraph = count($this->richTextParagraphs) - 1;
+        $this->activeParagraph = \count($this->richTextParagraphs) - 1;
 
         if (isset($alignment)) {
             $this->getActiveParagraph()->setAlignment($alignment);
@@ -351,7 +351,7 @@ class RichText extends AbstractShape implements ComparableInterface
     public function setParagraphs(array $paragraphs = []): self
     {
         $this->richTextParagraphs = $paragraphs;
-        $this->activeParagraph = count($this->richTextParagraphs) - 1;
+        $this->activeParagraph = \count($this->richTextParagraphs) - 1;
 
         return $this;
     }
@@ -419,11 +419,11 @@ class RichText extends AbstractShape implements ComparableInterface
     {
         $this->autoFit = $value;
 
-        if (!is_null($fontScale)) {
+        if (!\is_null($fontScale)) {
             $this->fontScale = $fontScale;
         }
 
-        if (!is_null($lnSpcReduction)) {
+        if (!\is_null($lnSpcReduction)) {
             $this->lnSpcReduction = $lnSpcReduction;
         }
 
@@ -722,7 +722,7 @@ class RichText extends AbstractShape implements ComparableInterface
             $hashElements .= $element->getHashCode();
         }
 
-        return md5(
+        return \md5(
             $hashElements
             . $this->wrap
             . $this->autoFit

PhpOffice/PhpPresentation/Shape/RichText/BreakElement.php

@@ -87,6 +87,6 @@ class BreakElement implements TextElementInterface
      */
     public function getHashCode(): string
     {
-        return md5(__CLASS__);
+        return \md5(__CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/RichText/Paragraph.php

@@ -267,7 +267,7 @@ class Paragraph implements ComparableInterface
             $hashElements .= $element->getHashCode();
         }
 
-        return md5($hashElements . $this->font->getHashCode() . __CLASS__);
+        return \md5($hashElements . $this->font->getHashCode() . __CLASS__);
     }
 
     /**
@@ -337,7 +337,7 @@ class Paragraph implements ComparableInterface
      */
     public function setLineSpacingMode(string $lineSpacingMode): self
     {
-        if (in_array($lineSpacingMode, [
+        if (\in_array($lineSpacingMode, [
             self::LINE_SPACING_MODE_PERCENT,
             self::LINE_SPACING_MODE_POINT,
         ])) {

PhpOffice/PhpPresentation/Shape/RichText/Run.php

@@ -75,6 +75,6 @@ class Run extends TextElement implements TextElementInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->getText() . $this->font->getHashCode() . __CLASS__);
+        return \md5($this->getText() . $this->font->getHashCode() . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/RichText/TextElement.php

@@ -92,12 +92,12 @@ class TextElement implements TextElementInterface
 
     public function hasHyperlink(): bool
     {
-        return !is_null($this->hyperlink);
+        return !\is_null($this->hyperlink);
     }
 
     public function getHyperlink(): Hyperlink
     {
-        if (is_null($this->hyperlink)) {
+        if (\is_null($this->hyperlink)) {
             $this->hyperlink = new Hyperlink();
         }
 
@@ -147,6 +147,6 @@ class TextElement implements TextElementInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->text . (is_null($this->hyperlink) ? '' : $this->hyperlink->getHashCode()) . __CLASS__);
+        return \md5($this->text . (\is_null($this->hyperlink) ? '' : $this->hyperlink->getHashCode()) . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Table.php

@@ -71,7 +71,7 @@ class Table extends AbstractGraphic implements ComparableInterface
         if (!isset($this->rows[$row])) {
             throw new OutOfBoundsException(
                 0,
-                (count($this->rows) - 1) < 0 ? 0 : count($this->rows) - 1,
+                (\count($this->rows) - 1) < 0 ? 0 : \count($this->rows) - 1,
                 $row
             );
         }
@@ -144,6 +144,6 @@ class Table extends AbstractGraphic implements ComparableInterface
             $hashElements .= $row->getHashCode();
         }
 
-        return md5($hashElements . __CLASS__);
+        return \md5($hashElements . __CLASS__);
     }
 }

PhpOffice/PhpPresentation/Shape/Table/Cell.php

@@ -133,8 +133,8 @@ class Cell implements ComparableInterface
      */
     public function setActiveParagraph($index = 0): Paragraph
     {
-        if ($index >= count($this->richTextParagraphs)) {
+        if ($index >= \count($this->richTextParagraphs)) {
-            throw new OutOfBoundsException(0, count($this->richTextParagraphs), $index);
+            throw new OutOfBoundsException(0, \count($this->richTextParagraphs), $index);
         }
 
         $this->activeParagraph = $index;
@@ -151,8 +151,8 @@ class Cell implements ComparableInterface
      */
     public function getParagraph(int $index = 0): Paragraph
     {
-        if ($index >= count($this->richTextParagraphs)) {
+        if ($index >= \count($this->richTextParagraphs)) {
-            throw new OutOfBoundsException(0, count($this->richTextParagraphs), $index);
+            throw new OutOfBoundsException(0, \count($this->richTextParagraphs), $index);
         }
 
         return $this->richTextParagraphs[$index];
@@ -164,7 +164,7 @@ class Cell implements ComparableInterface
     public function createParagraph(): Paragraph
     {
         $this->richTextParagraphs[] = new Paragraph();
-        $totalRichTextParagraphs = count($this->richTextParagraphs);
+        $totalRichTextParagraphs = \count($this->richTextParagraphs);
         $this->activeParagraph = $totalRichTextParagraphs - 1;
 
         if ($totalRichTextParagraphs > 1) {
@@ -277,7 +277,7 @@ class Cell implements ComparableInterface
     public function setParagraphs(array $paragraphs = []): self
     {
         $this->richTextParagraphs = $paragraphs;
-        $this->activeParagraph = count($this->richTextParagraphs) - 1;
+        $this->activeParagraph = \count($this->richTextParagraphs) - 1;
 
         return $this;
     }
@@ -384,7 +384,7 @@ class Cell implements ComparableInterface
             $hashElements .= $element->getHashCode();
         }
 
-        return md5($hashElements . $this->fill->getHashCode() . $this->borders->getHashCode() . $this->width . __CLASS__);
+        return \md5($hashElements . $this->fill->getHashCode() . $this->borders->getHashCode() . $this->width . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Shape/Table/Row.php

@@ -89,7 +89,7 @@ class Row implements ComparableInterface
         if (!isset($this->cells[$cell])) {
             throw new OutOfBoundsException(
                 0,
-                (count($this->cells) - 1) < 0 ? count($this->cells) - 1 : 0,
+                (\count($this->cells) - 1) < 0 ? \count($this->cells) - 1 : 0,
                 $cell
             );
         }
@@ -137,7 +137,7 @@ class Row implements ComparableInterface
 
         throw new OutOfBoundsException(
             0,
-            (count($this->cells) - 1) < 0 ? count($this->cells) - 1 : 0,
+            (\count($this->cells) - 1) < 0 ? \count($this->cells) - 1 : 0,
             $this->activeCellIndex
         );
     }
@@ -200,7 +200,7 @@ class Row implements ComparableInterface
             $hashElements .= $cell->getHashCode();
         }
 
-        return md5($hashElements . $this->fill->getHashCode() . $this->height . __CLASS__);
+        return \md5($hashElements . $this->fill->getHashCode() . $this->height . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/ShapeContainerInterface.php

@@ -30,7 +30,7 @@ interface ShapeContainerInterface
     /**
      * Get collection of shapes.
      *
-     * @return array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @return array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     public function getShapeCollection();
 

PhpOffice/PhpPresentation/Slide.php

@@ -79,13 +79,13 @@ class Slide extends AbstractSlide implements ComparableInterface, ShapeContainer
         // Shape collection
         $this->shapeCollection = new \ArrayObject();
         // Set identifier
-        $this->identifier = md5(rand(0, 9999) . time());
+        $this->identifier = \md5(\rand(0, 9999) . \time());
         // Set Slide Layout
         if ($this->parent instanceof PhpPresentation) {
             $arrayMasterSlides = $this->parent->getAllMasterSlides();
-            $oMasterSlide = reset($arrayMasterSlides);
+            $oMasterSlide = \reset($arrayMasterSlides);
             $arraySlideLayouts = $oMasterSlide->getAllSlideLayouts();
-            $oSlideLayout = reset($arraySlideLayouts);
+            $oSlideLayout = \reset($arraySlideLayouts);
             $this->setSlideLayout($oSlideLayout);
         }
         // Set note
@@ -153,7 +153,7 @@ class Slide extends AbstractSlide implements ComparableInterface, ShapeContainer
 
     public function setNote(Note $note = null): self
     {
-        $this->slideNote = (is_null($note) ? new Note() : $note);
+        $this->slideNote = (\is_null($note) ? new Note() : $note);
         $this->slideNote->setParent($this);
 
         return $this;

PhpOffice/PhpPresentation/Slide/AbstractSlide.php

@@ -47,7 +47,7 @@ abstract class AbstractSlide implements ComparableInterface, ShapeContainerInter
     /**
      * Collection of shapes.
      *
-     * @var array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @var array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     protected $shapeCollection = [];
     /**
@@ -102,7 +102,7 @@ abstract class AbstractSlide implements ComparableInterface, ShapeContainerInter
     /**
      * Get collection of shapes.
      *
-     * @return array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @return array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     public function getShapeCollection()
     {
@@ -112,7 +112,7 @@ abstract class AbstractSlide implements ComparableInterface, ShapeContainerInter
     /**
      * Get collection of shapes.
      *
-     * @param array<int, AbstractShape>|ArrayObject<int, AbstractShape> $shapeCollection
+     * @param array<int, AbstractShape>|\ArrayObject<int, AbstractShape> $shapeCollection
      *
      * @return AbstractSlide
      */
@@ -198,7 +198,7 @@ abstract class AbstractSlide implements ComparableInterface, ShapeContainerInter
      */
     public function getHashCode(): string
     {
-        return md5($this->identifier . __CLASS__);
+        return \md5($this->identifier . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Slide/Background/Image.php

@@ -70,13 +70,13 @@ class Image extends AbstractBackground
     public function setPath(string $pValue = '', bool $pVerifyFile = true)
     {
         if ($pVerifyFile) {
-            if (!file_exists($pValue)) {
+            if (!\file_exists($pValue)) {
                 throw new FileNotFoundException($pValue);
             }
 
             if (0 == $this->width && 0 == $this->height) {
                 // Get width/height
-                list($this->width, $this->height) = getimagesize($pValue);
+                list($this->width, $this->height) = \getimagesize($pValue);
             }
         }
         $this->path = $pValue;
@@ -91,7 +91,7 @@ class Image extends AbstractBackground
      */
     public function getFilename(): string
     {
-        return $this->path ? basename($this->path) : '';
+        return $this->path ? \basename($this->path) : '';
     }
 
     /**
@@ -101,9 +101,9 @@ class Image extends AbstractBackground
      */
     public function getExtension(): string
     {
-        $exploded = explode('.', $this->getFilename());
+        $exploded = \explode('.', $this->getFilename());
 
-        return $exploded[count($exploded) - 1];
+        return $exploded[\count($exploded) - 1];
     }
 
     /**

PhpOffice/PhpPresentation/Slide/Iterator.php

@@ -24,7 +24,7 @@ use IteratorIterator;
 use PhpOffice\PhpPresentation\PhpPresentation;
 
 // @phpstan-ignore-next-line
-class Iterator extends IteratorIterator
+class Iterator extends \IteratorIterator
 {
     /**
      * Presentation to iterate.

PhpOffice/PhpPresentation/Slide/Note.php

@@ -40,7 +40,7 @@ class Note implements ComparableInterface, ShapeContainerInterface
     /**
      * Collection of shapes.
      *
-     * @var array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @var array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     private $shapeCollection;
 
@@ -97,16 +97,16 @@ class Note implements ComparableInterface, ShapeContainerInterface
         $this->parent = $pParent;
 
         // Shape collection
-        $this->shapeCollection = new ArrayObject();
+        $this->shapeCollection = new \ArrayObject();
 
         // Set identifier
-        $this->identifier = md5(rand(0, 9999) . time());
+        $this->identifier = \md5(\rand(0, 9999) . \time());
     }
 
     /**
      * Get collection of shapes.
      *
-     * @return array<int, AbstractShape>|ArrayObject<int, AbstractShape>
+     * @return array<int, AbstractShape>|\ArrayObject<int, AbstractShape>
      */
     public function getShapeCollection()
     {
@@ -221,7 +221,7 @@ class Note implements ComparableInterface, ShapeContainerInterface
      */
     public function getHashCode(): string
     {
-        return md5($this->identifier . __CLASS__);
+        return \md5($this->identifier . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Slide/SlideLayout.php

@@ -71,7 +71,7 @@ class SlideLayout extends AbstractSlide implements ComparableInterface, ShapeCon
         // Shape collection
         $this->shapeCollection = new \ArrayObject();
         // Set identifier
-        $this->identifier = md5(rand(0, 9999) . time());
+        $this->identifier = \md5(\rand(0, 9999) . \time());
         // Set a basic colorMap
         $this->colorMap = new ColorMap();
     }

PhpOffice/PhpPresentation/Slide/SlideMaster.php

@@ -79,7 +79,7 @@ class SlideMaster extends AbstractSlide implements ComparableInterface, ShapeCon
         // Shape collection
         $this->shapeCollection = new \ArrayObject();
         // Set identifier
-        $this->identifier = md5(rand(0, 9999) . time());
+        $this->identifier = \md5(\rand(0, 9999) . \time());
         // Set a basic colorMap
         $this->colorMap = new ColorMap();
         // Set a white background

PhpOffice/PhpPresentation/Slide/Transition.php

@@ -100,7 +100,7 @@ class Transition
 
     public function setSpeed(?string $speed = self::SPEED_MEDIUM): self
     {
-        if (in_array($speed, [self::SPEED_FAST, self::SPEED_MEDIUM, self::SPEED_SLOW])) {
+        if (\in_array($speed, [self::SPEED_FAST, self::SPEED_MEDIUM, self::SPEED_SLOW])) {
             $this->speed = $speed;
         } else {
             $this->speed = null;

PhpOffice/PhpPresentation/Style/Alignment.php

@@ -212,7 +212,7 @@ class Alignment implements ComparableInterface
      */
     public function setIndent(float $pValue = 0): self
     {
-        if ($pValue > 0 && !in_array($this->getHorizontal(), $this->supportedStyles)) {
+        if ($pValue > 0 && !\in_array($this->getHorizontal(), $this->supportedStyles)) {
             $pValue = 0; // indent not supported
         }
 
@@ -234,7 +234,7 @@ class Alignment implements ComparableInterface
      */
     public function setMarginLeft(float $pValue = 0): self
     {
-        if ($pValue > 0 && !in_array($this->getHorizontal(), $this->supportedStyles)) {
+        if ($pValue > 0 && !\in_array($this->getHorizontal(), $this->supportedStyles)) {
             $pValue = 0; // margin left not supported
         }
 
@@ -256,7 +256,7 @@ class Alignment implements ComparableInterface
      */
     public function setMarginRight(float $pValue = 0): self
     {
-        if ($pValue > 0 && !in_array($this->getHorizontal(), $this->supportedStyles)) {
+        if ($pValue > 0 && !\in_array($this->getHorizontal(), $this->supportedStyles)) {
             $pValue = 0; // margin right not supported
         }
 
@@ -343,7 +343,7 @@ class Alignment implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->horizontal
             . $this->vertical
             . $this->level

PhpOffice/PhpPresentation/Style/Border.php

@@ -194,7 +194,7 @@ class Border implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->lineStyle
             . $this->lineWidth
             . $this->dashStyle

PhpOffice/PhpPresentation/Style/Borders.php

@@ -159,7 +159,7 @@ class Borders implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->getLeft()->getHashCode()
             . $this->getRight()->getHashCode()
             . $this->getTop()->getHashCode()

PhpOffice/PhpPresentation/Style/Bullet.php

@@ -265,7 +265,7 @@ class Bullet implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->bulletType
             . $this->bulletFont
             . $this->bulletChar

PhpOffice/PhpPresentation/Style/Color.php

@@ -100,9 +100,9 @@ class Color implements ComparableInterface
     public function getAlpha(): int
     {
         $alpha = 100;
-        if (strlen($this->argb) >= 6) {
+        if (\strlen($this->argb) >= 6) {
-            $dec = hexdec(substr($this->argb, 0, 2));
+            $dec = \hexdec(\substr($this->argb, 0, 2));
-            $alpha = (int) number_format(($dec / 255) * 100, 0);
+            $alpha = (int) \number_format(($dec / 255) * 100, 0);
         }
 
         return $alpha;
@@ -123,10 +123,10 @@ class Color implements ComparableInterface
         if ($alpha > 100) {
             $alpha = 100;
         }
-        $alpha = round(($alpha / 100) * 255);
+        $alpha = \round(($alpha / 100) * 255);
-        $alpha = dechex((int) $alpha);
+        $alpha = \dechex((int) $alpha);
-        $alpha = str_pad($alpha, 2, '0', STR_PAD_LEFT);
+        $alpha = \str_pad($alpha, 2, '0', STR_PAD_LEFT);
-        $this->argb = $alpha . substr($this->argb, 2);
+        $this->argb = $alpha . \substr($this->argb, 2);
 
         return $this;
     }
@@ -138,10 +138,10 @@ class Color implements ComparableInterface
      */
     public function getRGB()
     {
-        if (6 == strlen($this->argb)) {
+        if (6 == \strlen($this->argb)) {
             return $this->argb;
         } else {
-            return substr($this->argb, 2);
+            return \substr($this->argb, 2);
         }
     }
 
@@ -173,7 +173,7 @@ class Color implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->argb
             . __CLASS__
         );

PhpOffice/PhpPresentation/Style/Fill.php

@@ -198,7 +198,7 @@ class Fill implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->getFillType()
             . $this->getRotation()
             . $this->getStartColor()->getHashCode()

PhpOffice/PhpPresentation/Style/Font.php

@@ -376,7 +376,7 @@ class Font implements ComparableInterface
      */
     public function setFormat(string $value = self::FORMAT_LATIN): self
     {
-        if (in_array($value, [
+        if (\in_array($value, [
             self::FORMAT_COMPLEX_SCRIPT,
             self::FORMAT_EAST_ASIAN,
             self::FORMAT_LATIN,
@@ -394,7 +394,7 @@ class Font implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(
+        return \md5(
             $this->name
             . $this->size
             . ($this->bold ? 't' : 'f')

PhpOffice/PhpPresentation/Style/Shadow.php

@@ -232,7 +232,7 @@ class Shadow implements ComparableInterface
      */
     public function getHashCode(): string
     {
-        return md5(($this->visible ? 't' : 'f') . $this->blurRadius . $this->distance . $this->direction . $this->alignment . $this->color->getHashCode() . $this->alpha . __CLASS__);
+        return \md5(($this->visible ? 't' : 'f') . $this->blurRadius . $this->distance . $this->direction . $this->alignment . $this->color->getHashCode() . $this->alpha . __CLASS__);
     }
 
     /**

PhpOffice/PhpPresentation/Style/TextStyle.php

@@ -72,7 +72,7 @@ class TextStyle
 
     private function checkLvl(?int $lvl): bool
     {
-        if (is_null($lvl) || $lvl > 9) {
+        if (\is_null($lvl) || $lvl > 9) {
             return false;
         }
 

PhpOffice/PhpPresentation/Writer/AbstractWriter.php

@@ -105,31 +105,31 @@ abstract class AbstractWriter
         // Get an array of all master slides
         $aSlideMasters = $this->getPhpPresentation()->getAllMasterSlides();
 
-        $aSlideMasterLayouts = array_map(function ($oSlideMaster) {
+        $aSlideMasterLayouts = \array_map(function ($oSlideMaster) {
             return $oSlideMaster->getAllSlideLayouts();
         }, $aSlideMasters);
 
         // Get an array of all slide layouts
         $aSlideLayouts = [];
-        array_walk_recursive($aSlideMasterLayouts, function ($oSlideLayout) use (&$aSlideLayouts) {
+        \array_walk_recursive($aSlideMasterLayouts, function ($oSlideLayout) use (&$aSlideLayouts) {
             $aSlideLayouts[] = $oSlideLayout;
         });
 
         // Loop through PhpPresentation
-        foreach (array_merge($this->getPhpPresentation()->getAllSlides(), $aSlideMasters, $aSlideLayouts) as $oSlide) {
+        foreach (\array_merge($this->getPhpPresentation()->getAllSlides(), $aSlideMasters, $aSlideLayouts) as $oSlide) {
             $arrayReturn = $this->iterateCollection($oSlide->getShapeCollection()->getIterator());
-            $aDrawings = array_merge($aDrawings, $arrayReturn);
+            $aDrawings = \array_merge($aDrawings, $arrayReturn);
         }
 
         return $aDrawings;
     }
 
     /**
-     * @param ArrayIterator<int, AbstractShape> $oIterator
+     * @param \ArrayIterator<int, AbstractShape> $oIterator
      *
      * @return array<int, AbstractShape>
      */
-    private function iterateCollection(ArrayIterator $oIterator): array
+    private function iterateCollection(\ArrayIterator $oIterator): array
     {
         $arrayReturn = [];
         if ($oIterator->count() <= 0) {
@@ -144,7 +144,7 @@ abstract class AbstractWriter
                 $arrayReturn[] = $oShape;
             } elseif ($oShape instanceof Group) {
                 $arrayGroup = $this->iterateCollection($oShape->getShapeCollection()->getIterator());
-                $arrayReturn = array_merge($arrayReturn, $arrayGroup);
+                $arrayReturn = \array_merge($arrayReturn, $arrayGroup);
             }
             $oIterator->next();
         }

PhpOffice/PhpPresentation/Writer/ODPresentation.php

@@ -86,8 +86,8 @@ class ODPresentation extends AbstractWriter implements WriterInterface
         }
         // If $pFilename is php://output or php://stdout, make it a temporary file...
         $originalFilename = $pFilename;
-        if ('php://output' == strtolower($pFilename) || 'php://stdout' == strtolower($pFilename)) {
+        if ('php://output' == \strtolower($pFilename) || 'php://stdout' == \strtolower($pFilename)) {
-            $pFilename = @tempnam('./', 'phppttmp');
+            $pFilename = @\tempnam('./', 'phppttmp');
             if ('' == $pFilename) {
                 $pFilename = $originalFilename;
             }
@@ -105,7 +105,7 @@ class ODPresentation extends AbstractWriter implements WriterInterface
         $arrayChart = [];
 
         $arrayFiles = [];
-        $oDir = new DirectoryIterator(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'ODPresentation');
+        $oDir = new \DirectoryIterator(\dirname(__FILE__) . DIRECTORY_SEPARATOR . 'ODPresentation');
         foreach ($oDir as $oFile) {
             if (!$oFile->isFile()) {
                 continue;
@@ -120,7 +120,7 @@ class ODPresentation extends AbstractWriter implements WriterInterface
             $arrayFiles[$oFile->getBasename('.php')] = $class;
         }
 
-        ksort($arrayFiles);
+        \ksort($arrayFiles);
 
         foreach ($arrayFiles as $o) {
             $oService = $o->newInstance();
@@ -138,10 +138,10 @@ class ODPresentation extends AbstractWriter implements WriterInterface
 
         // If a temporary file was used, copy it to the correct file stream
         if ($originalFilename != $pFilename) {
-            if (false === copy($pFilename, $originalFilename)) {
+            if (false === \copy($pFilename, $originalFilename)) {
                 throw new FileCopyException($pFilename, $originalFilename);
             }
-            if (false === @unlink($pFilename)) {
+            if (false === @\unlink($pFilename)) {
                 throw new FileRemoveException($pFilename);
             }
         }
@@ -171,8 +171,8 @@ class ODPresentation extends AbstractWriter implements WriterInterface
     {
         $this->useDiskCaching = $pValue;
 
-        if (!is_null($directory)) {
+        if (!\is_null($directory)) {
-            if (!is_dir($directory)) {
+            if (!\is_dir($directory)) {
                 throw new DirectoryNotFoundException($directory);
             }
             $this->diskCachingDirectory = $directory;

PhpOffice/PhpPresentation/Writer/ODPresentation/Content.php

@@ -170,7 +170,7 @@ class Content extends AbstractDecoratorWriter
         if (!empty($this->arrStyleBullet)) {
             foreach ($this->arrStyleBullet as $key => $item) {
                 $oStyle = $item['oStyle'];
-                $arrLevel = explode(';', $item['level']);
+                $arrLevel = \explode(';', $item['level']);
                 // style:style
                 $objWriter->startElement('text:list-style');
                 $objWriter->writeAttribute('style:name', 'L_' . $key);
@@ -179,7 +179,7 @@ class Content extends AbstractDecoratorWriter
                         $oAlign = $item['oAlign_' . $level];
                         // text:list-level-style-bullet
                         $objWriter->startElement('text:list-level-style-bullet');
-                        $objWriter->writeAttribute('text:level', intval($level) + 1);
+                        $objWriter->writeAttribute('text:level', \intval($level) + 1);
                         $objWriter->writeAttribute('text:bullet-char', $oStyle->getBulletChar());
                         // style:list-level-properties
                         $objWriter->startElement('style:list-level-properties');
@@ -318,7 +318,7 @@ class Content extends AbstractDecoratorWriter
             $pSlide = $this->getPresentation()->getSlide($i);
             $objWriter->startElement('draw:page');
             $name = $pSlide->getName();
-            if (!is_null($name)) {
+            if (!\is_null($name)) {
                 $objWriter->writeAttribute('draw:name', $name);
             }
             $objWriter->writeAttribute('draw:master-page-name', 'Standard');
@@ -638,13 +638,13 @@ class Content extends AbstractDecoratorWriter
          */
         // officeooo:annotation
         $objWriter->startElement('officeooo:annotation');
-        $objWriter->writeAttribute('svg:x', number_format(CommonDrawing::pixelsToCentimeters((int) $oShape->getOffsetX()), 2, '.', '') . 'cm');
+        $objWriter->writeAttribute('svg:x', \number_format(CommonDrawing::pixelsToCentimeters((int) $oShape->getOffsetX()), 2, '.', '') . 'cm');
-        $objWriter->writeAttribute('svg:y', number_format(CommonDrawing::pixelsToCentimeters((int) $oShape->getOffsetY()), 2, '.', '') . 'cm');
+        $objWriter->writeAttribute('svg:y', \number_format(CommonDrawing::pixelsToCentimeters((int) $oShape->getOffsetY()), 2, '.', '') . 'cm');
 
         if ($oShape->getAuthor() instanceof Comment\Author) {
             $objWriter->writeElement('dc:creator', $oShape->getAuthor()->getName());
         }
-        $objWriter->writeElement('dc:date', date('Y-m-d\TH:i:s', $oShape->getDate()));
+        $objWriter->writeElement('dc:date', \date('Y-m-d\TH:i:s', $oShape->getDate()));
         $objWriter->writeElement('text:p', $oShape->getText());
 
         // ## officeooo:annotation
@@ -681,7 +681,7 @@ class Content extends AbstractDecoratorWriter
 
         $arrayRows = $shape->getRows();
         if (!empty($arrayRows)) {
-            $firstRow = reset($arrayRows);
+            $firstRow = \reset($arrayRows);
             $arrayCells = $firstRow->getCells();
             // table:table
             $objWriter->startElement('table:table');
@@ -862,11 +862,11 @@ class Content extends AbstractDecoratorWriter
         $objWriter->startElement('style:graphic-properties');
         $objWriter->writeAttribute('style:mirror', 'none');
         $this->writeStylePartShadow($objWriter, $shape->getShadow());
-        if (is_bool($shape->hasAutoShrinkVertical())) {
+        if (\is_bool($shape->hasAutoShrinkVertical())) {
-            $objWriter->writeAttribute('draw:auto-grow-height', var_export($shape->hasAutoShrinkVertical(), true));
+            $objWriter->writeAttribute('draw:auto-grow-height', \var_export($shape->hasAutoShrinkVertical(), true));
         }
-        if (is_bool($shape->hasAutoShrinkHorizontal())) {
+        if (\is_bool($shape->hasAutoShrinkHorizontal())) {
-            $objWriter->writeAttribute('draw:auto-grow-width', var_export($shape->hasAutoShrinkHorizontal(), true));
+            $objWriter->writeAttribute('draw:auto-grow-width', \var_export($shape->hasAutoShrinkHorizontal(), true));
         }
         // Fill
         switch ($shape->getFill()->getFillType()) {
@@ -890,7 +890,7 @@ class Content extends AbstractDecoratorWriter
             $objWriter->writeAttribute('draw:stroke', 'none');
         } else {
             $objWriter->writeAttribute('svg:stroke-color', '#' . $shape->getBorder()->getColor()->getRGB());
-            $objWriter->writeAttribute('svg:stroke-width', number_format(CommonDrawing::pointsToCentimeters($shape->getBorder()->getLineWidth()), 3, '.', '') . 'cm');
+            $objWriter->writeAttribute('svg:stroke-width', \number_format(CommonDrawing::pointsToCentimeters($shape->getBorder()->getLineWidth()), 3, '.', '') . 'cm');
             switch ($shape->getBorder()->getDashStyle()) {
                 case Border::DASH_SOLID:
                     $objWriter->writeAttribute('draw:stroke', 'solid');
@@ -936,7 +936,7 @@ class Content extends AbstractDecoratorWriter
                 $this->arrStyleBullet[$bulletStyleHashCode]['oStyle'] = $paragraph->getBulletStyle();
                 $this->arrStyleBullet[$bulletStyleHashCode]['level'] = '';
             }
-            if (false === strpos($this->arrStyleBullet[$bulletStyleHashCode]['level'], ';' . $paragraph->getAlignment()->getLevel())) {
+            if (false === \strpos($this->arrStyleBullet[$bulletStyleHashCode]['level'], ';' . $paragraph->getAlignment()->getLevel())) {
                 $this->arrStyleBullet[$bulletStyleHashCode]['level'] .= ';' . $paragraph->getAlignment()->getLevel();
                 $this->arrStyleBullet[$bulletStyleHashCode]['oAlign_' . $paragraph->getAlignment()->getLevel()] = $paragraph->getAlignment();
             }
@@ -1129,7 +1129,7 @@ class Content extends AbstractDecoratorWriter
     protected function writeSlideNote(XMLWriter $objWriter, Note $note): void
     {
         $shapesNote = $note->getShapeCollection();
-        if (count($shapesNote) > 0) {
+        if (\count($shapesNote) > 0) {
             $objWriter->startElement('presentation:notes');
 
             foreach ($shapesNote as $shape) {
@@ -1157,8 +1157,8 @@ class Content extends AbstractDecoratorWriter
         // style:style/style:drawing-page-properties
         $objWriter->startElement('style:drawing-page-properties');
         $objWriter->writeAttributeIf(!$slide->isVisible(), 'presentation:visibility', 'hidden');
-        if (!is_null($oTransition = $slide->getTransition())) {
+        if (!\is_null($oTransition = $slide->getTransition())) {
-            $objWriter->writeAttribute('presentation:duration', 'PT' . number_format($oTransition->getAdvanceTimeTrigger() / 1000, 6, '.', '') . 'S');
+            $objWriter->writeAttribute('presentation:duration', 'PT' . \number_format($oTransition->getAdvanceTimeTrigger() / 1000, 6, '.', '') . 'S');
             $objWriter->writeAttributeIf($oTransition->hasManualTrigger(), 'presentation:transition-type', 'manual');
             $objWriter->writeAttributeIf($oTransition->hasTimeTrigger(), 'presentation:transition-type', 'automatic');
             switch ($oTransition->getSpeed()) {

PhpOffice/PhpPresentation/Writer/ODPresentation/Meta.php

@@ -56,7 +56,7 @@ class Meta extends AbstractDecoratorWriter
         // dc:creator
         $objWriter->writeElement('dc:creator', $this->getPresentation()->getDocumentProperties()->getLastModifiedBy());
         // dc:date
-        $objWriter->writeElement('dc:date', gmdate('Y-m-d\TH:i:s.000', $this->getPresentation()->getDocumentProperties()->getModified()));
+        $objWriter->writeElement('dc:date', \gmdate('Y-m-d\TH:i:s.000', $this->getPresentation()->getDocumentProperties()->getModified()));
         // dc:description
         $objWriter->writeElement('dc:description', $this->getPresentation()->getDocumentProperties()->getDescription());
         // dc:subject
@@ -64,7 +64,7 @@ class Meta extends AbstractDecoratorWriter
         // dc:title
         $objWriter->writeElement('dc:title', $this->getPresentation()->getDocumentProperties()->getTitle());
         // meta:creation-date
-        $objWriter->writeElement('meta:creation-date', gmdate('Y-m-d\TH:i:s.000', $this->getPresentation()->getDocumentProperties()->getCreated()));
+        $objWriter->writeElement('meta:creation-date', \gmdate('Y-m-d\TH:i:s.000', $this->getPresentation()->getDocumentProperties()->getCreated()));
         // meta:initial-creator
         $objWriter->writeElement('meta:initial-creator', $this->getPresentation()->getDocumentProperties()->getCreator());
         // meta:keyword
@@ -90,7 +90,7 @@ class Meta extends AbstractDecoratorWriter
                     break;
                 case DocumentProperties::PROPERTY_TYPE_DATE:
                     $objWriter->writeAttribute('meta:value-type', 'date');
-                    $objWriter->writeRaw(date(DATE_W3C, (int) $propertyValue));
+                    $objWriter->writeRaw(\date(DATE_W3C, (int) $propertyValue));
                     break;
                 case DocumentProperties::PROPERTY_TYPE_STRING:
                 case DocumentProperties::PROPERTY_TYPE_UNKNOWN:

PhpOffice/PhpPresentation/Writer/ODPresentation/MetaInfManifest.php

@@ -93,12 +93,12 @@ class MetaInfManifest extends AbstractDecoratorWriter
         foreach ($this->getPresentation()->getAllSlides() as $numSlide => $oSlide) {
             $oBkgImage = $oSlide->getBackground();
             if ($oBkgImage instanceof Image) {
-                $arrayImage = getimagesize($oBkgImage->getPath());
+                $arrayImage = \getimagesize($oBkgImage->getPath());
-                $mimeType = image_type_to_mime_type($arrayImage[2]);
+                $mimeType = \image_type_to_mime_type($arrayImage[2]);
 
                 $objWriter->startElement('manifest:file-entry');
                 $objWriter->writeAttribute('manifest:media-type', $mimeType);
-                $objWriter->writeAttribute('manifest:full-path', 'Pictures/' . str_replace(' ', '_', $oBkgImage->getIndexedFilename((string) $numSlide)));
+                $objWriter->writeAttribute('manifest:full-path', 'Pictures/' . \str_replace(' ', '_', $oBkgImage->getIndexedFilename((string) $numSlide)));
                 $objWriter->endElement();
             }
         }
@@ -107,9 +107,9 @@ class MetaInfManifest extends AbstractDecoratorWriter
             $pathThumbnail = $this->getPresentation()->getPresentationProperties()->getThumbnailPath();
             // Size : 128x128 pixel
             // PNG : 8bit, non-interlaced with full alpha transparency
-            $gdImage = imagecreatefromstring(file_get_contents($pathThumbnail));
+            $gdImage = \imagecreatefromstring(\file_get_contents($pathThumbnail));
             if ($gdImage) {
-                imagedestroy($gdImage);
+                \imagedestroy($gdImage);
                 $objWriter->startElement('manifest:file-entry');
                 $objWriter->writeAttribute('manifest:media-type', 'image/png');
                 $objWriter->writeAttribute('manifest:full-path', 'Thumbnails/thumbnail.png');

PhpOffice/PhpPresentation/Writer/ODPresentation/ObjectsChart.php

@@ -342,7 +342,7 @@ class ObjectsChart extends AbstractDecoratorWriter
         // style:graphic-properties
         $this->xmlContent->startElement('style:graphic-properties');
         $this->xmlContent->writeAttribute('draw:stroke', $axis->getOutline()->getFill()->getFillType());
-        $this->xmlContent->writeAttribute('svg:stroke-width', number_format(CommonDrawing::pointsToCentimeters($axis->getOutline()->getWidth()), 3, '.', '') . 'cm');
+        $this->xmlContent->writeAttribute('svg:stroke-width', \number_format(CommonDrawing::pointsToCentimeters($axis->getOutline()->getWidth()), 3, '.', '') . 'cm');
         $this->xmlContent->writeAttribute('svg:stroke-color', '#' . $axis->getOutline()->getFill()->getStartColor()->getRGB());
         $this->xmlContent->endElement();
         // style:style > style:text-properties
@@ -391,7 +391,7 @@ class ObjectsChart extends AbstractDecoratorWriter
         $this->xmlContent->writeAttribute('style:family', 'chart');
         // style:style > style:graphic-properties
         $this->xmlContent->startElement('style:graphic-properties');
-        $this->xmlContent->writeAttribute('svg:stroke-width', number_format(CommonDrawing::pointsToCentimeters($oGridlines->getOutline()->getWidth()), 2, '.', '') . 'cm');
+        $this->xmlContent->writeAttribute('svg:stroke-width', \number_format(CommonDrawing::pointsToCentimeters($oGridlines->getOutline()->getWidth()), 2, '.', '') . 'cm');
         $this->xmlContent->writeAttribute('svg:stroke-color', '#' . $oGridlines->getOutline()->getFill()->getStartColor()->getRGB());
         $this->xmlContent->endElement();
         // ##style:style
@@ -617,7 +617,7 @@ class ObjectsChart extends AbstractDecoratorWriter
     {
         $chartType = $chart->getPlotArea()->getType();
 
-        $numRange = count($series->getValues());
+        $numRange = \count($series->getValues());
         // chart:series
         $this->xmlContent->startElement('chart:series');
         $this->xmlContent->writeAttribute('chart:values-cell-range-address', 'table-local.$' . $this->rangeCol . '$2:.$' . $this->rangeCol . '$' . ($numRange + 1));
@@ -662,7 +662,7 @@ class ObjectsChart extends AbstractDecoratorWriter
             // > chart:data-point
             $this->xmlContent->endElement();
         } elseif ($chartType instanceof AbstractTypePie) {
-            $count = count($series->getDataPointFills());
+            $count = \count($series->getDataPointFills());
             for ($inc = 0; $inc < $count; ++$inc) {
                 // chart:data-point
                 $this->xmlContent->startElement('chart:data-point');
@@ -730,7 +730,7 @@ class ObjectsChart extends AbstractDecoratorWriter
                         break;
                 }
                 $this->xmlContent->writeAttribute('chart:symbol-name', $symbolName);
-                $symbolSize = number_format(CommonDrawing::pointsToCentimeters($oMarker->getSize()), 2, '.', '');
+                $symbolSize = \number_format(CommonDrawing::pointsToCentimeters($oMarker->getSize()), 2, '.', '');
                 $this->xmlContent->writeAttribute('chart:symbol-width', $symbolSize . 'cm');
                 $this->xmlContent->writeAttribute('chart:symbol-height', $symbolSize . 'cm');
             }
@@ -760,7 +760,7 @@ class ObjectsChart extends AbstractDecoratorWriter
             if ($oOutline instanceof Outline) {
                 $outlineWidth = $oOutline->getWidth();
                 if (!empty($outlineWidth)) {
-                    $outlineWidth = number_format(CommonDrawing::pointsToCentimeters($outlineWidth), 3, '.', '');
+                    $outlineWidth = \number_format(CommonDrawing::pointsToCentimeters($outlineWidth), 3, '.', '');
                 }
                 $outlineColor = $oOutline->getFill()->getStartColor()->getRGB();
             }
@@ -819,8 +819,8 @@ class ObjectsChart extends AbstractDecoratorWriter
         // table:table-column
         $this->xmlContent->startElement('table:table-column');
         if (!empty($this->arrayData)) {
-            $rowFirst = reset($this->arrayData);
+            $rowFirst = \reset($this->arrayData);
-            $this->xmlContent->writeAttribute('table:number-columns-repeated', count($rowFirst) - 1);
+            $this->xmlContent->writeAttribute('table:number-columns-repeated', \count($rowFirst) - 1);
         }
         // > table:table-column
         $this->xmlContent->endElement();
@@ -842,7 +842,7 @@ class ObjectsChart extends AbstractDecoratorWriter
             $this->xmlContent->startElement('table:table-cell');
             $this->xmlContent->endElement();
         } else {
-            $rowFirst = reset($this->arrayData);
+            $rowFirst = \reset($this->arrayData);
             foreach ($rowFirst as $key => $cell) {
                 // table:table-cell
                 $this->xmlContent->startElement('table:table-cell');
@@ -880,13 +880,13 @@ class ObjectsChart extends AbstractDecoratorWriter
                     // table:table-cell
                     $this->xmlContent->startElement('table:table-cell');
 
-                    $cellValueTypeFloat = is_null($cell) ? true : is_numeric($cell);
+                    $cellValueTypeFloat = \is_null($cell) ? true : \is_numeric($cell);
                     $this->xmlContent->writeAttributeIf(!$cellValueTypeFloat, 'office:value-type', 'string');
                     $this->xmlContent->writeAttributeIf($cellValueTypeFloat, 'office:value-type', 'float');
-                    $this->xmlContent->writeAttributeIf($cellValueTypeFloat, 'office:value', is_null($cell) ? 'NaN' : $cell);
+                    $this->xmlContent->writeAttributeIf($cellValueTypeFloat, 'office:value', \is_null($cell) ? 'NaN' : $cell);
                     // text:p
                     $this->xmlContent->startElement('text:p');
-                    $this->xmlContent->text(is_null($cell) ? 'NaN' : (string) $cell);
+                    $this->xmlContent->text(\is_null($cell) ? 'NaN' : (string) $cell);
                     $this->xmlContent->endElement();
                     // > table:table-cell
                     $this->xmlContent->endElement();

PhpOffice/PhpPresentation/Writer/ODPresentation/Pictures.php

@@ -45,7 +45,7 @@ class Pictures extends AbstractDecoratorWriter
             // Add background image slide
             $oBkgImage = $oSlide->getBackground();
             if ($oBkgImage instanceof Image) {
-                $this->getZip()->addFromString('Pictures/' . $oBkgImage->getIndexedFilename((string) $keySlide), file_get_contents($oBkgImage->getPath()));
+                $this->getZip()->addFromString('Pictures/' . $oBkgImage->getIndexedFilename((string) $keySlide), \file_get_contents($oBkgImage->getPath()));
             }
         }
 

PhpOffice/PhpPresentation/Writer/ODPresentation/Styles.php

@@ -184,13 +184,13 @@ class Styles extends AbstractDecoratorWriter
     {
         $oFill = $shape->getFill();
         if (Fill::FILL_GRADIENT_LINEAR == $oFill->getFillType() || Fill::FILL_GRADIENT_PATH == $oFill->getFillType()) {
-            if (!in_array($oFill->getHashCode(), $this->arrayGradient)) {
+            if (!\in_array($oFill->getHashCode(), $this->arrayGradient)) {
                 $this->writeGradientFill($objWriter, $oFill);
             }
         }
         $oBorder = $shape->getBorder();
         if (Border::DASH_SOLID != $oBorder->getDashStyle()) {
-            if (!in_array($oBorder->getDashStyle(), $this->arrayStrokeDash)) {
+            if (!\in_array($oBorder->getDashStyle(), $this->arrayStrokeDash)) {
                 $objWriter->startElement('draw:stroke-dash');
                 $objWriter->writeAttribute('draw:name', 'strokeDash_' . $oBorder->getDashStyle());
                 $objWriter->writeAttribute('draw:style', 'rect');
@@ -270,7 +270,7 @@ class Styles extends AbstractDecoratorWriter
         foreach ($shape->getRows() as $row) {
             foreach ($row->getCells() as $cell) {
                 if (Fill::FILL_GRADIENT_LINEAR == $cell->getFill()->getFillType()) {
-                    if (!in_array($cell->getFill()->getHashCode(), $this->arrayGradient)) {
+                    if (!\in_array($cell->getFill()->getHashCode(), $this->arrayGradient)) {
                         $this->writeGradientFill($objWriter, $cell->getFill());
                     }
                 }
@@ -319,7 +319,7 @@ class Styles extends AbstractDecoratorWriter
     {
         $objWriter->startElement('draw:fill-image');
         $objWriter->writeAttribute('draw:name', 'background_' . (string) $numSlide);
-        $objWriter->writeAttribute('xlink:href', 'Pictures/' . str_replace(' ', '_', $oBkgImage->getIndexedFilename((string) $numSlide)));
+        $objWriter->writeAttribute('xlink:href', 'Pictures/' . \str_replace(' ', '_', $oBkgImage->getIndexedFilename((string) $numSlide)));
         $objWriter->writeAttribute('xlink:type', 'simple');
         $objWriter->writeAttribute('xlink:show', 'embed');
         $objWriter->writeAttribute('xlink:actuate', 'onLoad');

PhpOffice/PhpPresentation/Writer/ODPresentation/ThumbnailsThumbnail.php

@@ -30,25 +30,25 @@ class ThumbnailsThumbnail extends AbstractDecoratorWriter
         if ($pathThumbnail) {
             // Size : 128x128 pixel
             // PNG : 8bit, non-interlaced with full alpha transparency
-            $gdImage = imagecreatefromstring(file_get_contents($pathThumbnail));
+            $gdImage = \imagecreatefromstring(\file_get_contents($pathThumbnail));
             if ($gdImage) {
-                list($width, $height) = getimagesize($pathThumbnail);
+                list($width, $height) = \getimagesize($pathThumbnail);
 
-                $gdRender = imagecreatetruecolor(128, 128);
+                $gdRender = \imagecreatetruecolor(128, 128);
-                $colorBgAlpha = imagecolorallocatealpha($gdRender, 0, 0, 0, 127);
+                $colorBgAlpha = \imagecolorallocatealpha($gdRender, 0, 0, 0, 127);
-                imagecolortransparent($gdRender, $colorBgAlpha);
+                \imagecolortransparent($gdRender, $colorBgAlpha);
-                imagefill($gdRender, 0, 0, $colorBgAlpha);
+                \imagefill($gdRender, 0, 0, $colorBgAlpha);
-                imagecopyresampled($gdRender, $gdImage, 0, 0, 0, 0, 128, 128, $width, $height);
+                \imagecopyresampled($gdRender, $gdImage, 0, 0, 0, 0, 128, 128, $width, $height);
-                imagetruecolortopalette($gdRender, false, 255);
+                \imagetruecolortopalette($gdRender, false, 255);
-                imagesavealpha($gdRender, true);
+                \imagesavealpha($gdRender, true);
 
-                ob_start();
+                \ob_start();
-                imagepng($gdRender);
+                \imagepng($gdRender);
-                $imageContents = ob_get_contents();
+                $imageContents = \ob_get_contents();
-                ob_end_clean();
+                \ob_end_clean();
 
-                imagedestroy($gdRender);
+                \imagedestroy($gdRender);
-                imagedestroy($gdImage);
+                \imagedestroy($gdImage);
 
                 $this->getZip()->addFromString('Thumbnails/thumbnail.png', $imageContents);
             }

PhpOffice/PhpPresentation/Writer/PowerPoint2007.php

@@ -85,8 +85,8 @@ class PowerPoint2007 extends AbstractWriter implements WriterInterface
 
         // If $pFilename is php://output or php://stdout, make it a temporary file...
         $originalFilename = $pFilename;
-        if ('php://output' == strtolower($pFilename) || 'php://stdout' == strtolower($pFilename)) {
+        if ('php://output' == \strtolower($pFilename) || 'php://stdout' == \strtolower($pFilename)) {
-            $pFilename = @tempnam('./', 'phppttmp');
+            $pFilename = @\tempnam('./', 'phppttmp');
             if ('' == $pFilename) {
                 $pFilename = $originalFilename;
             }
@@ -98,7 +98,7 @@ class PowerPoint2007 extends AbstractWriter implements WriterInterface
         $oZip = $this->getZipAdapter();
         $oZip->open($pFilename);
 
-        $oDir = new DirectoryIterator(dirname(__FILE__) . DIRECTORY_SEPARATOR . 'PowerPoint2007');
+        $oDir = new \DirectoryIterator(\dirname(__FILE__) . DIRECTORY_SEPARATOR . 'PowerPoint2007');
         $arrayFiles = [];
         foreach ($oDir as $oFile) {
             if (!$oFile->isFile()) {
@@ -106,7 +106,7 @@ class PowerPoint2007 extends AbstractWriter implements WriterInterface
             }
 
             $class = __NAMESPACE__ . '\\PowerPoint2007\\' . $oFile->getBasename('.php');
-            $class = new ReflectionClass($class);
+            $class = new \ReflectionClass($class);
 
             if ($class->isAbstract() || !$class->isSubclassOf(AbstractDecoratorWriter::class)) {
                 continue;
@@ -114,7 +114,7 @@ class PowerPoint2007 extends AbstractWriter implements WriterInterface
             $arrayFiles[$oFile->getBasename('.php')] = $class;
         }
 
-        ksort($arrayFiles);
+        \ksort($arrayFiles);
 
         foreach ($arrayFiles as $o) {
             $oService = $o->newInstance();
@@ -130,10 +130,10 @@ class PowerPoint2007 extends AbstractWriter implements WriterInterface
 
         // If a temporary file was used, copy it to the correct file stream
         if ($originalFilename != $pFilename) {
-            if (false === copy($pFilename, $originalFilename)) {
+            if (false === \copy($pFilename, $originalFilename)) {
                 throw new FileCopyException($pFilename, $originalFilename);
             }
-            if (false === @unlink($pFilename)) {
+            if (false === @\unlink($pFilename)) {
                 throw new FileRemoveException($pFilename);
             }
         }
@@ -163,8 +163,8 @@ class PowerPoint2007 extends AbstractWriter implements WriterInterface
     {
         $this->useDiskCaching = $useDiskCaching;
 
-        if (!is_null($directory)) {
+        if (!\is_null($directory)) {
-            if (!is_dir($directory)) {
+            if (!\is_dir($directory)) {
                 throw new DirectoryNotFoundException($directory);
             }
             $this->diskCachingDir = $directory;

PhpOffice/PhpPresentation/Writer/PowerPoint2007/AbstractDecoratorWriter.php

@@ -125,7 +125,7 @@ abstract class AbstractDecoratorWriter extends \PhpOffice\PhpPresentation\Writer
 
     protected function writeColor(XMLWriter $objWriter, Color $color, ?int $alpha = null): void
     {
-        if (is_null($alpha)) {
+        if (\is_null($alpha)) {
             $alpha = $color->getAlpha();
         }
 
@@ -283,12 +283,12 @@ abstract class AbstractDecoratorWriter extends \PhpOffice\PhpPresentation\Writer
      */
     protected function absoluteZipPath(string $path): string
     {
-        $path = str_replace([
+        $path = \str_replace([
             '/',
             '\\',
         ], DIRECTORY_SEPARATOR, $path);
-        $parts = array_filter(explode(DIRECTORY_SEPARATOR, $path), function (string $var) {
+        $parts = \array_filter(\explode(DIRECTORY_SEPARATOR, $path), function (string $var) {
-            return (bool) strlen($var);
+            return (bool) \strlen($var);
         });
         $absolutes = [];
         foreach ($parts as $part) {
@@ -296,12 +296,12 @@ abstract class AbstractDecoratorWriter extends \PhpOffice\PhpPresentation\Writer
                 continue;
             }
             if ('..' == $part) {
-                array_pop($absolutes);
+                \array_pop($absolutes);
             } else {
                 $absolutes[] = $part;
             }
         }
 
-        return implode('/', $absolutes);
+        return \implode('/', $absolutes);
     }
 }