use global namespace

Account/Account.php

@@ -320,7 +320,7 @@ class Account implements ArrayableInterface, \JsonSerializable
      */
     public function hasPermission(int $permission, int $unit = null, string $app = null, string $module = null, int $type = null, int $element = null, int $component = null) : bool
     {
-        $app = $app !== null ? strtolower($app) : $app;
+        $app = $app !== null ? \strtolower($app) : $app;
 
         foreach ($this->permissions as $p) {
             if (($p->getUnit() === $unit || $p->getUnit() === null || $unit === null)

Account/AccountManager.php

@@ -131,6 +131,6 @@ final class AccountManager implements \Countable
      */
     public function count() : int
     {
-        return count($this->accounts);
+        return \count($this->accounts);
     }
 }

Asset/AssetManager.php

@@ -111,6 +111,6 @@ final class AssetManager implements \Countable
      */
     public function count() : int
     {
-        return count($this->assets);
+        return \count($this->assets);
     }
 }

Business/Finance/Depreciation.php

@@ -176,7 +176,7 @@ final class Depreciation
      */
     public static function getGeometicProgressivDepreciationRate(float $start, float $residual, int $duration) : float
     {
-        return (1 - pow($residual / $start, 1 / $duration));
+        return (1 - \pow($residual / $start, 1 / $duration));
     }
 
     /**
@@ -234,7 +234,7 @@ final class Depreciation
      */
     public static function getGeometicDegressivDepreciationRate(float $start, float $residual, int $duration) : float
     {
-        return (1 - pow($residual / $start, 1 / $duration));
+        return (1 - \pow($residual / $start, 1 / $duration));
     }
 
     /**

Business/Finance/FinanceFormulas.php

@@ -48,7 +48,7 @@ final class FinanceFormulas
      */
     public static function getAnnualPercentageYield(float $r, int $n) : float
     {
-        return pow(1 + $r / $n, $n) - 1;
+        return \pow(1 + $r / $n, $n) - 1;
     }
 
     /**
@@ -65,7 +65,7 @@ final class FinanceFormulas
      */
     public static function getStateAnnualInterestRateOfAPY(float $apy, int $n) : float
     {
-        return (pow($apy + 1, 1 / $n) - 1) * $n;
+        return (\pow($apy + 1, 1 / $n) - 1) * $n;
     }
 
     /**
@@ -81,7 +81,7 @@ final class FinanceFormulas
      */
     public static function getFutureValueOfAnnuity(float $P, float $r, int $n) : float
     {
-        return $P * (pow(1 + $r, $n) - 1) / $r;
+        return $P * (\pow(1 + $r, $n) - 1) / $r;
     }
 
     /**
@@ -97,7 +97,7 @@ final class FinanceFormulas
      */
     public static function getNumberOfPeriodsOfFVA(float $fva, float $P, float $r) : int
     {
-        return (int) round(log($fva / $P * $r + 1) / log(1 + $r));
+        return (int) \round(\log($fva / $P * $r + 1) / \log(1 + $r));
     }
 
     /**
@@ -113,7 +113,7 @@ final class FinanceFormulas
      */
     public static function getPeriodicPaymentOfFVA(float $fva, float $r, int $n) : float
     {
-        return $fva / ((pow(1 + $r, $n) - 1) / $r);
+        return $fva / ((\pow(1 + $r, $n) - 1) / $r);
     }
 
     /**
@@ -129,7 +129,7 @@ final class FinanceFormulas
      */
     public static function getFutureValueOfAnnuityConinuousCompounding(float $cf, float $r, int $t) : float
     {
-        return $cf * (exp($r * $t) - 1) / (exp($r) - 1);
+        return $cf * (\exp($r * $t) - 1) / (\exp($r) - 1);
     }
 
     /**
@@ -145,7 +145,7 @@ final class FinanceFormulas
      */
     public static function getCashFlowOfFVACC(float $fvacc, float $r, int $t) : float
     {
-        return $fvacc / ((exp($r * $t) - 1) / (exp($r) - 1));
+        return $fvacc / ((\exp($r * $t) - 1) / (\exp($r) - 1));
     }
 
     /**
@@ -161,7 +161,7 @@ final class FinanceFormulas
      */
     public static function getTimeOfFVACC(float $fvacc, float $cf, float $r) : int
     {
-        return (int) round(log($fvacc / $cf * (exp($r) - 1) + 1) / $r);
+        return (int) \round(\log($fvacc / $cf * (\exp($r) - 1) + 1) / $r);
     }
 
     /**
@@ -177,7 +177,7 @@ final class FinanceFormulas
      */
     public static function getAnnuityPaymentPV(float $pv, float $r, int $n) : float
     {
-        return $r * $pv / (1 - pow(1 + $r, -$n));
+        return $r * $pv / (1 - \pow(1 + $r, -$n));
     }
 
     /**
@@ -193,7 +193,7 @@ final class FinanceFormulas
      */
     public static function getNumberOfAPPV(float $p, float $pv, float $r) : int
     {
-        return (int) round(-log(-($r * $pv / $p - 1)) / log(1 + $r));
+        return (int) \round(-log(-($r * $pv / $p - 1)) / \log(1 + $r));
     }
 
     /**
@@ -209,7 +209,7 @@ final class FinanceFormulas
      */
     public static function getPresentValueOfAPPV(float $p, float $r, int $n) : float
     {
-        return $p / $r * (1 - pow(1 + $r, -$n));
+        return $p / $r * (1 - \pow(1 + $r, -$n));
     }
 
     /**
@@ -225,7 +225,7 @@ final class FinanceFormulas
      */
     public static function getAnnuityPaymentFV(float $fv, float $r, int $n) : float
     {
-        return $r * $fv / (pow(1 + $r, $n) - 1);
+        return $r * $fv / (\pow(1 + $r, $n) - 1);
     }
 
     /**
@@ -241,7 +241,7 @@ final class FinanceFormulas
      */
     public static function getNumberOfAPFV(float $p, float $fv, float $r) : int
     {
-        return (int) round(log($fv * $r / $p + 1) / log(1 + $r));
+        return (int) \round(\log($fv * $r / $p + 1) / \log(1 + $r));
     }
 
     /**
@@ -257,7 +257,7 @@ final class FinanceFormulas
      */
     public static function getFutureValueOfAPFV(float $p, float $r, int $n) : float
     {
-        return $p / $r * (pow(1 + $r, $n) - 1);
+        return $p / $r * (\pow(1 + $r, $n) - 1);
     }
 
     /**
@@ -272,7 +272,7 @@ final class FinanceFormulas
      */
     public static function getAnnutiyPaymentFactorPV(float $r, int $n) : float
     {
-        return $r / (1 - pow(1 + $r, -$n));
+        return $r / (1 - \pow(1 + $r, -$n));
     }
 
     /**
@@ -287,7 +287,7 @@ final class FinanceFormulas
      */
     public static function getNumberOfAPFPV(float $p, float $r) : int
     {
-        return (int) round(-log(-($r / $p - 1)) / log(1 + $r));
+        return (int) \round(-log(-($r / $p - 1)) / \log(1 + $r));
     }
 
     /**
@@ -303,7 +303,7 @@ final class FinanceFormulas
      */
     public static function getPresentValueOfAnnuity(float $P, float $r, int $n) : float
     {
-        return $P * (1 - pow(1 + $r, -$n)) / $r;
+        return $P * (1 - \pow(1 + $r, -$n)) / $r;
     }
 
     /**
@@ -319,7 +319,7 @@ final class FinanceFormulas
      */
     public static function getNumberOfPeriodsOfPVA(float $pva, float $P, float $r) : int
     {
-        return (int) round(-log(-($pva / $P * $r - 1)) / log(1 + $r));
+        return (int) \round(-log(-($pva / $P * $r - 1)) / \log(1 + $r));
     }
 
     /**
@@ -335,7 +335,7 @@ final class FinanceFormulas
      */
     public static function getPeriodicPaymentOfPVA(float $pva, float $r, int $n) : float
     {
-        return $pva / ((1 - pow(1 + $r, -$n)) / $r);
+        return $pva / ((1 - \pow(1 + $r, -$n)) / $r);
     }
 
     /**
@@ -350,7 +350,7 @@ final class FinanceFormulas
      */
     public static function getPresentValueAnnuityFactor(float $r, int $n) : float
     {
-        return (1 - pow(1 + $r, -$n)) / $r;
+        return (1 - \pow(1 + $r, -$n)) / $r;
     }
 
     /**
@@ -365,7 +365,7 @@ final class FinanceFormulas
      */
     public static function getPeriodsOfPVAF(float $p, float $r) : int
     {
-        return (int) round(-log(-($p * $r - 1)) / log(1 + $r));
+        return (int) \round(-log(-($p * $r - 1)) / \log(1 + $r));
     }
 
     /**
@@ -381,7 +381,7 @@ final class FinanceFormulas
      */
     public static function getPresentValueOfAnnuityDue(float $P, float $r, int $n) : float
     {
-        return $P + $P * ((1 - pow(1 + $r, -($n - 1))) / $r);
+        return $P + $P * ((1 - \pow(1 + $r, -($n - 1))) / $r);
     }
 
     /**
@@ -399,7 +399,7 @@ final class FinanceFormulas
      */
     public static function getPeriodicPaymentOfPVAD(float $PV, float $r, int $n) : float
     {
-        return $PV * $r / (1 - pow(1 + $r, -$n)) * 1 / (1 + $r);
+        return $PV * $r / (1 - \pow(1 + $r, -$n)) * 1 / (1 + $r);
     }
 
     /**
@@ -415,7 +415,7 @@ final class FinanceFormulas
      */
     public static function getPeriodsOfPVAD(float $PV, float $P, float $r) : int
     {
-        return (int) round(-(log(-($PV - $P) / $P * $r + 1) / log(1 + $r) - 1));
+        return (int) \round(-(\log(-($PV - $P) / $P * $r + 1) / \log(1 + $r) - 1));
     }
 
     /**
@@ -431,7 +431,7 @@ final class FinanceFormulas
      */
     public static function getFutureValueOfAnnuityDue(float $P, float $r, int $n) : float
     {
-        return (1 + $r) * $P * (pow(1 + $r, $n) - 1) / $r;
+        return (1 + $r) * $P * (\pow(1 + $r, $n) - 1) / $r;
     }
 
     /**
@@ -447,7 +447,7 @@ final class FinanceFormulas
      */
     public static function getPeriodicPaymentOfFVAD(float $FV, float $r, int $n) : float
     {
-        return $FV / ((1 + $r) * ((pow(1 + $r, $n) - 1) / $r));
+        return $FV / ((1 + $r) * ((\pow(1 + $r, $n) - 1) / $r));
     }
 
     /**
@@ -463,7 +463,7 @@ final class FinanceFormulas
      */
     public static function getPeriodsOfFVAD(float $FV, float $P, float $r) : int
     {
-        return (int) round(log($FV / (1 + $r) / $P * $r + 1) / log(1 + $r));
+        return (int) \round(\log($FV / (1 + $r) / $P * $r + 1) / \log(1 + $r));
     }
 
     /**
@@ -539,7 +539,7 @@ final class FinanceFormulas
      */
     public static function getCompoundInterest(float $P, float $r, int $n) : float
     {
-        return $P * (pow(1 + $r, $n) - 1);
+        return $P * (\pow(1 + $r, $n) - 1);
     }
 
     /**
@@ -555,7 +555,7 @@ final class FinanceFormulas
      */
     public static function getPrincipalOfCompundInterest(float $C, float $r, int $n) : float
     {
-        return $C / (pow(1 + $r, $n) - 1);
+        return $C / (\pow(1 + $r, $n) - 1);
     }
 
     /**
@@ -571,7 +571,7 @@ final class FinanceFormulas
      */
     public static function getPeriodsOfCompundInterest(float $P, float $C, float $r) : float
     {
-        return log($C / $P + 1) / log(1 + $r);
+        return \log($C / $P + 1) / \log(1 + $r);
     }
 
     /**
@@ -587,7 +587,7 @@ final class FinanceFormulas
      */
     public static function getContinuousCompounding(float $P, float $r, int $t) : float
     {
-        return $P * exp($r * $t);
+        return $P * \exp($r * $t);
     }
 
     /**
@@ -603,7 +603,7 @@ final class FinanceFormulas
      */
     public static function getPrincipalOfContinuousCompounding(float $C, float $r, int $t) : float
     {
-        return $C / exp($r * $t);
+        return $C / \exp($r * $t);
     }
 
     /**
@@ -619,7 +619,7 @@ final class FinanceFormulas
      */
     public static function getPeriodsOfContinuousCompounding(float $P, float $C, float $r) : float
     {
-        return log($C / $P) / $r;
+        return \log($C / $P) / $r;
     }
 
     /**
@@ -635,7 +635,7 @@ final class FinanceFormulas
      */
     public static function getRateOfContinuousCompounding(float $P, float $C, float $t) : float
     {
-        return log($C / $P) / $t;
+        return \log($C / $P) / $t;
     }
 
     /**
@@ -740,7 +740,7 @@ final class FinanceFormulas
      */
     public static function getDiscountedPaybackPeriod(float $CF, float $O1, float $r) : float
     {
-        return log(1 / (1 - $O1 * $r / $CF)) / log(1 + $r);
+        return \log(1 / (1 - $O1 * $r / $CF)) / \log(1 + $r);
     }
 
     /**
@@ -754,7 +754,7 @@ final class FinanceFormulas
      */
     public static function getDoublingTime(float $r) : float
     {
-        return log(2) / log(1 + $r);
+        return \log(2) / \log(1 + $r);
     }
 
     /**
@@ -768,7 +768,7 @@ final class FinanceFormulas
      */
     public static function getDoublingRate(float $t) : float
     {
-        return exp(log(2) / $t) - 1;
+        return \exp(\log(2) / $t) - 1;
     }
 
     /**
@@ -782,7 +782,7 @@ final class FinanceFormulas
      */
     public static function getDoublingTimeContinuousCompounding(float $r) : float
     {
-        return log(2) / $r;
+        return \log(2) / $r;
     }
 
     /**
@@ -798,7 +798,7 @@ final class FinanceFormulas
      */
     public static function getEquivalentAnnualAnnuity(float $NPV, float $r, int $n) : float
     {
-        return $r * $NPV / (1 - pow(1 + $r, -$n));
+        return $r * $NPV / (1 - \pow(1 + $r, -$n));
     }
 
     /**
@@ -814,7 +814,7 @@ final class FinanceFormulas
      */
     public static function getPeriodsOfEAA(float $C, float $NPV, float $r) : int
     {
-        return (int) round(-log(1 - $r * $NPV / $C) / log(1 + $r));
+        return (int) \round(-log(1 - $r * $NPV / $C) / \log(1 + $r));
     }
 
     /**
@@ -830,7 +830,7 @@ final class FinanceFormulas
      */
     public static function getNetPresentValueOfEAA(float $C, float $r, int $n) : float
     {
-        return $C * (1 - pow(1 + $r, -$n)) / $r;
+        return $C * (1 - \pow(1 + $r, -$n)) / $r;
     }
 
     /**
@@ -886,7 +886,7 @@ final class FinanceFormulas
      */
     public static function getFutureValue(float $C, float $r, int $n) : float
     {
-        return $C * pow(1 + $r, $n);
+        return $C * \pow(1 + $r, $n);
     }
 
     /**
@@ -902,7 +902,7 @@ final class FinanceFormulas
      */
     public static function getFutureValueContinuousCompounding(float $PV, float $r, int $t) : float
     {
-        return $PV * exp($r * $t);
+        return $PV * \exp($r * $t);
     }
 
     /**
@@ -922,7 +922,7 @@ final class FinanceFormulas
      */
     public static function getFutureValueFactor(float $r, int $n) : float
     {
-        return pow(1 + $r, $n);
+        return \pow(1 + $r, $n);
     }
 
     /**
@@ -953,7 +953,7 @@ final class FinanceFormulas
      */
     public static function getGrowingAnnuityFV(float $P, float $r, float $g, int $n) : float
     {
-        return $P * (pow(1 + $r, $n) - pow(1 + $g, $n)) / ($r - $g);
+        return $P * (\pow(1 + $r, $n) - \pow(1 + $g, $n)) / ($r - $g);
     }
 
     /**
@@ -970,7 +970,7 @@ final class FinanceFormulas
      */
     public static function getGrowingAnnuityPaymentPV(float $PV, float $r, float $g, int $n) : float
     {
-        return $PV * ($r - $g) / (1 - pow((1 + $g) / (1 + $r), $n));
+        return $PV * ($r - $g) / (1 - \pow((1 + $g) / (1 + $r), $n));
     }
 
     /**
@@ -987,7 +987,7 @@ final class FinanceFormulas
      */
     public static function getGrowingAnnuityPaymentFV(float $FV, float $r, float $g, int $n) : float
     {
-        return $FV * ($r - $g) / (pow(1 + $r, $n) - pow(1 + $g, $n));
+        return $FV * ($r - $g) / (\pow(1 + $r, $n) - \pow(1 + $g, $n));
     }
 
     /**
@@ -1004,7 +1004,7 @@ final class FinanceFormulas
      */
     public static function getGrowingAnnuityPV(float $P, float $r, float $g, int $n) : float
     {
-        return $P / ($r - $g) * (1 - pow((1 + $g) / (1 + $r), $n));
+        return $P / ($r - $g) * (1 - \pow((1 + $g) / (1 + $r), $n));
     }
 
     /**
@@ -1067,7 +1067,7 @@ final class FinanceFormulas
      */
     public static function getNetPresentValue(array $C, float $r) : float
     {
-        $count = count($C);
+        $count = \count($C);
 
         if ($count === 0) {
             throw new \UnexpectedValueException((string) $count);
@@ -1076,7 +1076,7 @@ final class FinanceFormulas
         $npv = -$C[0];
 
         for ($i = 1; $i < $count; ++$i) {
-            $npv += $C[$i] / pow(1 + $r, $i);
+            $npv += $C[$i] / \pow(1 + $r, $i);
         }
 
         return $npv;
@@ -1125,7 +1125,7 @@ final class FinanceFormulas
      */
     public static function getNumberOfPeriodsPVFV(float $FV, float $PV, float $r) : float
     {
-        return log($FV / $PV) / log(1 + $r);
+        return \log($FV / $PV) / \log(1 + $r);
     }
 
     /**
@@ -1171,7 +1171,7 @@ final class FinanceFormulas
      */
     public static function getPresentValue(float $C, float $r, int $n) : float
     {
-        return $C / pow(1 + $r, $n);
+        return $C / \pow(1 + $r, $n);
     }
 
     /**
@@ -1187,7 +1187,7 @@ final class FinanceFormulas
      */
     public static function getPresentValueContinuousCompounding(float $C, float $r, int $t) : float
     {
-        return $C / exp($r * $t);
+        return $C / \exp($r * $t);
     }
 
     /**
@@ -1202,7 +1202,7 @@ final class FinanceFormulas
      */
     public static function getPresentValueFactor(float $r, int $n) : float
     {
-        return 1 / pow(1 + $r, $n);
+        return 1 / \pow(1 + $r, $n);
     }
 
     /**
@@ -1386,7 +1386,7 @@ final class FinanceFormulas
      */
     public static function getSimpleInterestTime(float $I, float $P, float $r) : int
     {
-        return (int) round($I / ($P * $r));
+        return (int) \round($I / ($P * $r));
     }
 
     /**

Business/Finance/Forecasting/ARIMA.php

@@ -110,7 +110,7 @@ class ARIMA
     private function getPrelimRemainder(array $centeredRatios, array $prelimSeasonalComponent) : array
     {
         $remainder = [];
-        $count     = count($prelimSeasonalComponent);
+        $count     = \count($prelimSeasonalComponent);
 
         for ($i = 0; $i < $count; ++$i) {
             // +1 since 3x3 MA
@@ -136,7 +136,7 @@ class ARIMA
     private function getModifiedCenteredRatios(array $seasonal, array $remainder) : array
     {
         $centeredRatio = [];
-        $count         = count($seasonal);
+        $count         = \count($seasonal);
 
         for ($i = 0; $i < $count; ++$i) {
             // +1 since 3x3 MA
@@ -148,7 +148,7 @@ class ARIMA
 
     private function getTrendCycleEstimation(array $seasonal) : array
     {
-        $count = count($seasonal);
+        $count = \count($seasonal);
 
         if ($count >= 12) {
             $weight = Average::MAH23;
@@ -166,8 +166,8 @@ class ARIMA
     private function getSeasonalAdjustedSeries(array $seasonal) : array
     {
         $adjusted = [];
-        $count    = count($seasonal);
+        $count    = \count($seasonal);
-        $start    = ClassicalDecomposition::getStartOfDecomposition(count($this->data), $count);
+        $start    = ClassicalDecomposition::getStartOfDecomposition(\count($this->data), $count);
 
         for ($i = 0; $i < $count; ++$i) {
             $adjusted[] = $this->data[$start + $i] / $seasonal[$i];
@@ -189,7 +189,7 @@ class ARIMA
     private function getModifiedData(array $trendCycleComponent, array $seasonalAdjustedSeries, array $remainder) : array
     {
         $data  = [];
-        $count = count($trendCycleComponent);
+        $count = \count($trendCycleComponent);
 
         for ($i = 0; $i < $count; ++$i) {
             $data[] = $trendCycleComponent[$i] * $seasonalAdjustedSeries[$i] * $remainder[$i];

Business/Finance/Forecasting/ClassicalDecomposition.php

@@ -92,7 +92,7 @@ class ClassicalDecomposition
         $this->data  = $data;
         $this->order = $order;
 
-        $this->dataSize = count($data);
+        $this->dataSize = \count($data);
     }
 
     /**
@@ -148,8 +148,8 @@ class ClassicalDecomposition
     public static function computeDetrendedSeries(array $data, array $trendCycleComponent, int $mode) : array
     {
         $detrended = [];
-        $count     = count($trendCycleComponent);
+        $count     = \count($trendCycleComponent);
-        $start     = self::getStartOfDecomposition(count($data), $count);
+        $start     = self::getStartOfDecomposition(\count($data), $count);
 
         for ($i = 0; $i < $count; ++$i) {
             $detrended[] = $mode === self::ADDITIVE ? $data[$start + $i] - $trendCycleComponent[$i] : $data[$start + $i] / $trendCycleComponent[$i];
@@ -190,7 +190,7 @@ class ClassicalDecomposition
     private function computeSeasonalComponent(array $detrendedSeries, int $order) : array
     {
         $seasonalComponent = [];
-        $count             = count($detrendedSeries);
+        $count             = \count($detrendedSeries);
 
         for ($i = 0; $i < $order; ++$i) {
             $temp = [];
@@ -219,11 +219,11 @@ class ClassicalDecomposition
      */
     public static function computeRemainderComponent(array $data, array $trendCycleComponent, array $seasonalComponent, int $mode = self::ADDITIVE) : array
     {
-        $dataSize           = count($data);
+        $dataSize           = \count($data);
         $remainderComponent = [];
-        $count              = count($trendCycleComponent);
+        $count              = \count($trendCycleComponent);
         $start              = self::getStartOfDecomposition($dataSize, $count);
-        $seasons            = count($seasonalComponent);
+        $seasons            = \count($seasonalComponent);
 
         for ($i = 0; $i < $count; ++$i) {
             $remainderComponent[] = $mode === self::ADDITIVE ? $data[$start + $i] - $trendCycleComponent[$i] - $seasonalComponent[$i % $seasons] : $data[$start + $i] / ($trendCycleComponent[$i] * $seasonalComponent[$i % $seasons]);

Business/Finance/Loan.php

@@ -41,7 +41,7 @@ final class Loan
      */
     public static function getPaymentsOnBalloonLoan(float $PV, float $r, int $n, float $balloon = 0) : float
     {
-        return ($PV - $balloon / pow(1 + $r, $n)) * $r / (1 - pow(1 + $r, -$n));
+        return ($PV - $balloon / \pow(1 + $r, $n)) * $r / (1 - \pow(1 + $r, -$n));
     }
 
     /**
@@ -58,7 +58,7 @@ final class Loan
      */
     public static function getBalloonBalanceOfLoan(float $PV, float $P, float $r, int $n) : float
     {
-        return $PV * pow(1 + $r, $n) - $P * (pow(1 + $r, $n) - 1) / $r;
+        return $PV * \pow(1 + $r, $n) - $P * (\pow(1 + $r, $n) - 1) / $r;
     }
 
     /**
@@ -74,7 +74,7 @@ final class Loan
      */
     public static function getLoanPayment(float $PV, float $r, int $n) : float
     {
-        return $r * $PV / (1 - pow(1 + $r, -$n));
+        return $r * $PV / (1 - \pow(1 + $r, -$n));
     }
 
     /**
@@ -91,7 +91,7 @@ final class Loan
      */
     public static function getRemainingBalanceLoan(float $PV, float $P, float $r, int $n) : float
     {
-        return $PV * pow(1 + $r, $n) - $P * (pow(1 + $r, $n) - 1) / $r;
+        return $PV * \pow(1 + $r, $n) - $P * (\pow(1 + $r, $n) - 1) / $r;
     }
 
     /**

Business/Finance/Lorenzkurve.php

@@ -38,7 +38,7 @@ final class Lorenzkurve
         $sum1 = 0;
         $sum2 = 0;
         $i    = 1;
-        $n    = count($data);
+        $n    = \count($data);
 
         sort($data);
 

Business/Finance/StockBonds.php

@@ -353,7 +353,7 @@ final class StockBonds
      */
     public static function getZeroCouponBondValue(float $F, float $r, int $t) : float
     {
-        return $F / pow(1 + $r, $t);
+        return $F / \pow(1 + $r, $t);
     }
 
     /**
@@ -369,6 +369,6 @@ final class StockBonds
      */
     public static function getZeroCouponBondEffectiveYield(float $F, float $PV, int $n) : float
     {
-        return pow($F / $PV, 1 / $n) - 1;
+        return \pow($F / $PV, 1 / $n) - 1;
     }
 }

Business/Programming/Metrics.php

@@ -41,7 +41,7 @@ final class Metrics
      */
     public static function abcScore(int $a, int $b, int $c) : int
     {
-        return (int) sqrt($a * $a + $b * $b + $c * $c);
+        return (int) \sqrt($a * $a + $b * $b + $c * $c);
     }
 
     /**

Business/Sales/MarketShareEstimation.php

@@ -44,10 +44,10 @@ final class MarketShareEstimation
     {
         $sum = 0.0;
         for ($i = 0; $i < $participants; ++$i) {
-            $sum += 1 / pow($i + 1, $modifier);
+            $sum += 1 / \pow($i + 1, $modifier);
         }
 
-        return (int) round(pow(1 / ($marketShare * $sum), 1 / $modifier));
+        return (int) \round(\pow(1 / ($marketShare * $sum), 1 / $modifier));
     }
 
     /**
@@ -67,9 +67,9 @@ final class MarketShareEstimation
     {
         $sum = 0.0;
         for ($i = 0; $i < $participants; ++$i) {
-            $sum += 1 / pow($i + 1, $modifier);
+            $sum += 1 / \pow($i + 1, $modifier);
         }
 
-        return (1 / pow($rank, $modifier)) / $sum;
+        return (1 / \pow($rank, $modifier)) / $sum;
     }
 }

Config/SettingsAbstract.php

@@ -114,7 +114,7 @@ abstract class SettingsAbstract implements OptionsInterface
                     break;
             }
 
-            return count($options) > 1 ? $options : reset($options);
+            return \count($options) > 1 ? $options : \reset($options);
         } catch (\PDOException $e) {
             $exception = DatabaseExceptionFactory::createException($e);
             $message   = DatabaseExceptionFactory::createExceptionMessage($e);

DataStorage/Cache/CachePool.php

@@ -106,7 +106,7 @@ final class CachePool implements DataStoragePoolInterface
         }
 
         if (empty($key)) {
-            return reset($this->pool);
+            return \reset($this->pool);
         }
 
         return $this->pool[$key];

DataStorage/Database/DataMapperAbstract.php

@@ -1494,7 +1494,7 @@ class DataMapperAbstract implements DataMapperInterface
 
         if (empty($result)) {
             $parts     = \explode('\\', $class);
-            $name      = $parts[$c = (count($parts) - 1)];
+            $name      = $parts[$c = (\count($parts) - 1)];
             $parts[$c] = 'Null' . $name;
             $class     = \implode('\\', $parts);
         }
@@ -1914,7 +1914,7 @@ class DataMapperAbstract implements DataMapperInterface
         $primaryKey = (array) $primaryKey;
         $fill       = (array) $fill;
         $obj        = [];
-        $fCount     = count($fill);
+        $fCount     = \count($fill);
         $toFill     = null;
 
         foreach ($primaryKey as $key => $value) {
@@ -1924,8 +1924,8 @@ class DataMapperAbstract implements DataMapperInterface
             }
 
             if ($fCount > 0) {
-                $toFill = current($fill);
+                $toFill = \current($fill);
-                next($fill);
+                \next($fill);
             }
 
             $obj[$value] = self::populate(self::getRaw($value), $toFill);
@@ -1940,12 +1940,12 @@ class DataMapperAbstract implements DataMapperInterface
         self::fillRelations($obj, $relations, --$depth);
         self::clear();
 
-        $countResulsts = count($obj);
+        $countResulsts = \count($obj);
 
         if ($countResulsts === 0) {
             return self::getNullModelObj();
         } elseif ($countResulsts === 1) {
-            return reset($obj);
+            return \reset($obj);
         }
 
         return $obj;
@@ -1963,7 +1963,7 @@ class DataMapperAbstract implements DataMapperInterface
         $class     = static::class;
         $class     = \str_replace('Mapper', '', $class);
         $parts     = \explode('\\', $class);
-        $name      = $parts[$c = (count($parts) - 1)];
+        $name      = $parts[$c = (\count($parts) - 1)];
         $parts[$c] = 'Null' . $name;
         $class     = \implode('\\', $parts);
 
@@ -2010,7 +2010,7 @@ class DataMapperAbstract implements DataMapperInterface
         self::fillRelationsArray($obj, $relations, --$depth);
         self::clear();
 
-        return count($obj) === 1 ? reset($obj) : $obj;
+        return \count($obj) === 1 ? \reset($obj) : $obj;
     }
 
     /**
@@ -2053,12 +2053,12 @@ class DataMapperAbstract implements DataMapperInterface
             $obj[$value] = self::get($toLoad, $relations, $fill, --$depth);
         }
 
-        $countResulsts = count($obj);
+        $countResulsts = \count($obj);
 
         if ($countResulsts === 0) {
             return self::getNullModelObj();
         } elseif ($countResulsts === 1) {
-            return reset($obj);
+            return \reset($obj);
         }
 
         return $obj;
@@ -2099,7 +2099,7 @@ class DataMapperAbstract implements DataMapperInterface
             $obj[$value] = self::get($toLoad, $relations, $fill);
         }
 
-        return count($obj) === 1 ? reset($obj) : $obj;
+        return \count($obj) === 1 ? \reset($obj) : $obj;
     }
 
     /**
@@ -2591,7 +2591,7 @@ class DataMapperAbstract implements DataMapperInterface
         if ($request->getData('id') !== null) {
             $result = static::get((int) $request->getData('id'));
         } elseif (($filter = ((string) $request->getData('filter'))) !== null) {
-            $filter = strtolower($filter);
+            $filter = \strtolower($filter);
 
             if ($filter === 'all') {
                 $result = static::getAll();
@@ -2709,7 +2709,7 @@ class DataMapperAbstract implements DataMapperInterface
 
         $results = $sth->fetchAll(\PDO::FETCH_ASSOC);
 
-        return $results && count($results) === 0;
+        return $results && \count($results) === 0;
     }
 
     /**

DataStorage/Database/DatabasePool.php

@@ -86,7 +86,7 @@ final class DatabasePool implements DataStoragePoolInterface
         }
 
         if (empty($key)) {
-            return reset($this->pool);
+            return \reset($this->pool);
         }
 
         return $this->pool[$key];

DataStorage/Database/GrammarAbstract.php

@@ -93,8 +93,8 @@ abstract class GrammarAbstract
      */
     public function compileQuery(BuilderAbstract $query) : string
     {
-        return trim(
+        return \trim(
-            implode(' ',
+            \implode(' ',
                 \array_filter(
                     $this->compileComponents($query),
                     function ($value) {
@@ -186,7 +186,7 @@ abstract class GrammarAbstract
             }
         }
 
-        return rtrim($expression, ', ');
+        return \rtrim($expression, ', ');
     }
 
     /**
@@ -217,7 +217,7 @@ abstract class GrammarAbstract
             }
         }
 
-        return rtrim($expression, ', ');
+        return \rtrim($expression, ', ');
     }
 
     /**
@@ -234,7 +234,7 @@ abstract class GrammarAbstract
      */
     protected function compileSystem(string $system, string $prefix = '') : string
     {
-        // todo: this is a bad way to handle select count(*) which doesn't need a prefix. Maybe remove prefixes in total?
+        // todo: this is a bad way to handle select \count(*) which doesn't need a prefix. Maybe remove prefixes in total?
         $identifier = $this->systemIdentifier;
 
         foreach ($this->specialKeywords as $keyword) {
@@ -245,7 +245,7 @@ abstract class GrammarAbstract
         }
 
         // todo: move remaining * test also here not just if .* but also if * (should be done in else?)
-        if (count($split = \explode('.', $system)) === 2) {
+        if (\count($split = \explode('.', $system)) === 2) {
             $system = $split[1] === '*' ? $split[1] : $this->compileSystem($split[1]);
 
             return $this->compileSystem($prefix . $split[0]) . '.' . $system;

DataStorage/Database/Query/Builder.php

@@ -819,7 +819,7 @@ final class Builder extends BuilderAbstract
      */
     public function count(string $table = '*') : Builder
     {
-        // todo: don't do this as string, create new object new Count(); this can get handled by the grammar parser WAY better
+        // todo: don't do this as string, create new object new \count(); this can get handled by the grammar parser WAY better
         return $this->select('COUNT(' . $table . ')');
     }
 
@@ -949,10 +949,10 @@ final class Builder extends BuilderAbstract
      */
     public function value($value, string $type = 'string') : Builder
     {
-        end($this->values);
+        \end($this->values);
-        $key                  = key($this->values);
+        $key                  = \key($this->values);
         $this->values[$key][] = $value;
-        reset($this->values);
+        \reset($this->values);
 
         return $this;
     }
@@ -985,7 +985,7 @@ final class Builder extends BuilderAbstract
      */
     public function set($set, string $type = 'string') : Builder
     {
-        $this->sets[key($set)] = current($set);
+        $this->sets[key($set)] = \current($set);
 
         return $this;
     }

DataStorage/Database/Query/Grammar/Grammar.php

@@ -122,7 +122,7 @@ class Grammar extends GrammarAbstract
         /* Loop all possible query components and if they exist compile them. */
         foreach ($components as $component) {
             if (isset($query->{$component}) && !empty($query->{$component})) {
-                $sql[$component] = $this->{'compile' . ucfirst($component)}($query, $query->{$component});
+                $sql[$component] = $this->{'compile' . \ucfirst($component)}($query, $query->{$component});
             }
         }
 
@@ -286,7 +286,7 @@ class Grammar extends GrammarAbstract
 
         if (\is_string($element['column'])) {
             // handle bug when no table is specified in the where column
-            if (count($query->from) === 1 && \stripos($element['column'], '.') === false) {
+            if (\count($query->from) === 1 && \stripos($element['column'], '.') === false) {
                 $element['column'] = $query->from[0] . '.' . $element['column'];
             }
 
@@ -359,7 +359,7 @@ class Grammar extends GrammarAbstract
         } elseif ($value instanceof Column) {
             return $this->compileSystem($value->getColumn(), $prefix);
         } else {
-            throw new \InvalidArgumentException(gettype($value));
+            throw new \InvalidArgumentException(\gettype($value));
         }
     }
 

DataStorage/Database/Query/Grammar/MysqlGrammar.php

@@ -53,6 +53,6 @@ class MysqlGrammar extends Grammar
             $expression = '*';
         }
 
-        return 'SELECT ' . $expression . ' ' . $this->compileFrom($query, $query->from) . ' ORDER BY RAND() ' . $this->compileLimit($query, $query->limit);
+        return 'SELECT ' . $expression . ' ' . $this->compileFrom($query, $query->from) . ' ORDER BY \rand() ' . $this->compileLimit($query, $query->limit);
     }
 }

DataStorage/Database/Schema/Grammar/Grammar.php

@@ -73,7 +73,7 @@ class Grammar extends GrammarAbstract
         /* Loop all possible query components and if they exist compile them. */
         foreach ($components as $component) {
             if (isset($query->{$component}) && !empty($query->{$component})) {
-                $sql[$component] = $this->{'compile' . ucfirst($component)}($query, $query->{$component});
+                $sql[$component] = $this->{'compile' . \ucfirst($component)}($query, $query->{$component});
             }
         }
 

DataStorage/Web/Builder.php

@@ -66,9 +66,9 @@ class Builder
 
     private function createTable($node) : array
     {
-        if (strtolower($node->tagName) === 'table') {
+        if (\strtolower($node->tagName) === 'table') {
             return $this->createTableFromTable();
-        } elseif (strtolower($node->tagName) === 'li') {
+        } elseif (\strtolower($node->tagName) === 'li') {
             return $this->createTableFromList();
         } else {
             return $this->createTableFromContent();

Dispatcher/Dispatcher.php

@@ -109,7 +109,7 @@ final class Dispatcher
             throw new PathException($path);
         }
 
-        if (($c = count($dispatch)) === 3) {
+        if (($c = \count($dispatch)) === 3) {
             /* Handling static functions */
             $function = $dispatch[0] . '::' . $dispatch[2];
 
@@ -183,7 +183,7 @@ final class Dispatcher
     {
         if (!isset($this->controllers[$controller])) {
             // If module controller use module manager for initialization
-            if (strpos('\Modules\Controller', $controller) === 0) {
+            if (\strpos('\Modules\Controller', $controller) === 0) {
                 $split                          = \explode('\\', $controller);
                 $this->controllers[$controller] = $this->app->moduleManager->get($split[2]);
             } else {

Event/EventManager.php

@@ -234,6 +234,6 @@ final class EventManager
      */
     public function count() : int
     {
-        return count($this->callbacks);
+        return \count($this->callbacks);
     }
 }

Localization/Money.php

@@ -116,7 +116,7 @@ final class Money implements \Serializable
         $left  = \str_replace($thousands, '', $left);
         $right = '';
 
-        if (count($split) > 1) {
+        if (\count($split) > 1) {
             $right = $split[1];
         }
 
@@ -191,7 +191,7 @@ final class Money implements \Serializable
      */
     public function getAmount(int $decimals = 2) : string
     {
-        $value = (string) round($this->value, -self::MAX_DECIMALS + $decimals);
+        $value = (string) \round($this->value, -self::MAX_DECIMALS + $decimals);
 
         $left  = \substr($value, 0, -self::MAX_DECIMALS);
         $right = \substr($value, -self::MAX_DECIMALS);

Log/FileLogger.php

@@ -396,7 +396,7 @@ final class FileLogger implements LoggerInterface
         $line = \fgetcsv($this->fp, 0, ';');
 
         while ($line !== false && $line !== null) {
-            if (count($line) < 2) {
+            if (\count($line) < 2) {
                 continue;
             }
 
@@ -443,7 +443,7 @@ final class FileLogger implements LoggerInterface
         $line = \fgetcsv($this->fp, 0, ';');
 
         while ($line !== false && $line !== null) {
-            if (count($line) < 3) {
+            if (\count($line) < 3) {
                 continue;
             }
 
@@ -501,7 +501,7 @@ final class FileLogger implements LoggerInterface
             }
 
             if ($limit <= 0) {
-                reset($logs);
+                \reset($logs);
                 unset($logs[key($logs)]);
             }
 

Math/Functions/Fibunacci.php

@@ -91,6 +91,6 @@ final class Fibunacci
      */
     public static function binet(int $n) : int
     {
-        return (int) (((1 + sqrt(5)) ** $n - (1 - sqrt(5)) ** $n) / (2 ** $n * sqrt(5)));
+        return (int) (((1 + \sqrt(5)) ** $n - (1 - \sqrt(5)) ** $n) / (2 ** $n * \sqrt(5)));
     }
 }

Math/Functions/Functions.php

@@ -74,11 +74,11 @@ final class Functions
      */
     public static function binomialCoefficient(int $n, int $k) : int
     {
-        $max = max([$k, $n - $k]);
+        $max = \max([$k, $n - $k]);
-        $min = min([$k, $n - $k]);
+        $min = \min([$k, $n - $k]);
 
         $fact  = 1;
-        $range = array_reverse(range(1, $min));
+        $range = array_reverse(\range(1, $min));
 
         for ($i = $max + 1; $i < $n + 1; ++$i) {
             $div = 1;
@@ -138,7 +138,7 @@ final class Functions
         $abs = [];
 
         foreach ($values as $value) {
-            $abs[] = abs($value);
+            $abs[] = \abs($value);
         }
 
         return $abs;
@@ -293,7 +293,7 @@ final class Functions
         $squared = [];
 
         foreach ($values as $value) {
-            $squared[] = sqrt($value);
+            $squared[] = \sqrt($value);
         }
 
         return $squared;
@@ -315,6 +315,6 @@ final class Functions
      */
     public static function getRelativeDegree(int $value, int $length, int $start = 0) : int
     {
-        return abs(self::mod($value - $start, $length));
+        return \abs(self::mod($value - $start, $length));
     }
 }

Math/Functions/Gamma.php

@@ -58,7 +58,7 @@ final class Gamma
     public static function lanczosApproximationReal($z) : float
     {
         if ($z < 0.5) {
-            return M_PI / (sin(M_PI * $z) * self::lanczosApproximationReal(1 - $z));
+            return M_PI / (\sin(M_PI * $z) * self::lanczosApproximationReal(1 - $z));
         }
 
         $z -= 1;
@@ -69,7 +69,7 @@ final class Gamma
             $a += self::LANCZOSAPPROXIMATION[$i] / ($z + $i);
         }
 
-        return sqrt(2 * M_PI) * pow($t, $z + 0.5) * exp(-$t) * $a;
+        return \sqrt(2 * M_PI) * \pow($t, $z + 0.5) * \exp(-$t) * $a;
     }
 
     /**
@@ -83,7 +83,7 @@ final class Gamma
      */
     public static function stirlingApproximation($x) : float
     {
-        return sqrt(2.0 * M_PI / $x) * pow($x / M_E, $x);
+        return \sqrt(2.0 * M_PI / $x) * \pow($x / M_E, $x);
     }
 
     /**
@@ -101,7 +101,7 @@ final class Gamma
         $c       = [sqrt(2.0 * M_PI)];
 
         for ($k = 1; $k < 12; ++$k) {
-            $c[$k]    = exp(12 - $k) * pow(12 - $k, $k - 0.5) / $k1_fact;
+            $c[$k]    = \exp(12 - $k) * \pow(12 - $k, $k - 0.5) / $k1_fact;
             $k1_fact *= -$k;
         }
 
@@ -110,7 +110,7 @@ final class Gamma
             $accm += $c[$k] / ($z + $k);
         }
 
-        $accm *= exp(-$z - 12) * pow($z + 12, $z + 0.5);
+        $accm *= \exp(-$z - 12) * \pow($z + 12, $z + 0.5);
 
         return $accm / $z;
     }

Math/Geometry/ConvexHull/MonotoneChain.php

@@ -46,7 +46,7 @@ final class MonotoneChain
      */
     public static function createConvexHull(array $points) : array
     {
-        if (($n = count($points)) > 1) {
+        if (($n = \count($points)) > 1) {
             uasort($points, [self::class, 'sort']);
 
             $k      = 0;

Math/Geometry/Shape/D2/Circle.php

@@ -64,7 +64,7 @@ final class Circle implements D2ShapeInterface
      */
     public static function getRadiusBySurface(float $surface) : float
     {
-        return sqrt($surface / pi());
+        return \sqrt($surface / pi());
     }
 
     /**

Math/Geometry/Shape/D2/Ellipse.php

@@ -62,6 +62,6 @@ final class Ellipse implements D2ShapeInterface
      */
     public static function getPerimeter(float $a, float $b) : float
     {
-        return pi() * ($a + $b) * (3 * ($a - $b) ** 2 / (($a + $b) ** 2 * (sqrt(-3 * ($a - $b) ** 2 / (($a + $b) ** 2) + 4) + 10)) + 1);
+        return pi() * ($a + $b) * (3 * ($a - $b) ** 2 / (($a + $b) ** 2 * (\sqrt(-3 * ($a - $b) ** 2 / (($a + $b) ** 2) + 4) + 10)) + 1);
     }
 }

Math/Geometry/Shape/D2/Polygon.php

@@ -86,7 +86,7 @@ final class Polygon implements D2ShapeInterface
      */
     public static function isPointInPolygon(array $point, array $polygon) : int
     {
-        $length = count($polygon);
+        $length = \count($polygon);
 
         // Polygon has to start and end with same point
         if ($polygon[0]['x'] !== $polygon[$length - 1]['x'] || $polygon[0]['y'] !== $polygon[$length - 1]['y']) {
@@ -100,32 +100,32 @@ final class Polygon implements D2ShapeInterface
 
         // Inside or ontop?
         $countIntersect = 0;
-        $polygonCount   = count($polygon);
+        $polygonCount   = \count($polygon);
 
         for ($i = 1; $i < $polygonCount; ++$i) {
             $vertex1 = $polygon[$i - 1];
             $vertex2 = $polygon[$i];
 
-            if (abs($vertex1['y'] - $vertex2['y']) < self::EPSILON
+            if (\abs($vertex1['y'] - $vertex2['y']) < self::EPSILON
-                && abs($vertex1['y'] - $point['y']) < self::EPSILON
+                && \abs($vertex1['y'] - $point['y']) < self::EPSILON
-                && $point['x'] > min($vertex1['x'], $vertex2['x'])
+                && $point['x'] > \min($vertex1['x'], $vertex2['x'])
-                && $point['x'] < max($vertex1['x'], $vertex2['x'])
+                && $point['x'] < \max($vertex1['x'], $vertex2['x'])
             ) {
                 return 0; // boundary
             }
 
-            if ($point['y'] > min($vertex1['y'], $vertex2['y'])
+            if ($point['y'] > \min($vertex1['y'], $vertex2['y'])
-                && $point['y'] <= max($vertex1['y'], $vertex2['y'])
+                && $point['y'] <= \max($vertex1['y'], $vertex2['y'])
-                && $point['x'] <= max($vertex1['x'], $vertex2['x'])
+                && $point['x'] <= \max($vertex1['x'], $vertex2['x'])
-                && abs($vertex1['y'] - $vertex2['y']) >= self::EPSILON
+                && \abs($vertex1['y'] - $vertex2['y']) >= self::EPSILON
             ) {
                 $xinters = ($point['y'] - $vertex1['y']) * ($vertex2['x'] - $vertex1['x']) / ($vertex2['y'] - $vertex1['y']) + $vertex1['x'];
 
-                if (abs($xinters - $point['x']) < self::EPSILON) {
+                if (\abs($xinters - $point['x']) < self::EPSILON) {
                     return 0; // boundary
                 }
 
-                if (abs($vertex1['x'] - $vertex2['x']) < self::EPSILON || $point['x'] < $xinters) {
+                if (\abs($vertex1['x'] - $vertex2['x']) < self::EPSILON || $point['x'] < $xinters) {
                     $countIntersect++;
                 }
             }
@@ -151,7 +151,7 @@ final class Polygon implements D2ShapeInterface
     private static function isOnVertex(array $point, array $polygon) : bool
     {
         foreach ($polygon as $vertex) {
-            if (abs($point['x'] - $vertex['x']) < self::EPSILON && abs($point['y'] - $vertex['y']) < self::EPSILON) {
+            if (\abs($point['x'] - $vertex['x']) < self::EPSILON && \abs($point['y'] - $vertex['y']) < self::EPSILON) {
                 return true;
             }
         }
@@ -168,7 +168,7 @@ final class Polygon implements D2ShapeInterface
      */
     public function getInteriorAngleSum() : int
     {
-        return (count($this->coord) - 2) * 180;
+        return (\count($this->coord) - 2) * 180;
     }
 
     /**
@@ -192,7 +192,7 @@ final class Polygon implements D2ShapeInterface
      */
     public function getSurface() : float
     {
-        return abs($this->getSignedSurface());
+        return \abs($this->getSignedSurface());
     }
 
     /**
@@ -204,7 +204,7 @@ final class Polygon implements D2ShapeInterface
      */
     private function getSignedSurface() : float
     {
-        $count   = count($this->coord);
+        $count   = \count($this->coord);
         $surface = 0;
 
         for ($i = 0; $i < $count - 1; ++$i) {
@@ -226,11 +226,11 @@ final class Polygon implements D2ShapeInterface
      */
     public function getPerimeter() : float
     {
-        $count     = count($this->coord);
+        $count     = \count($this->coord);
-        $perimeter = sqrt(($this->coord[0]['x'] - $this->coord[$count - 1]['x']) ** 2 + ($this->coord[0]['y'] - $this->coord[$count - 1]['y']) ** 2);
+        $perimeter = \sqrt(($this->coord[0]['x'] - $this->coord[$count - 1]['x']) ** 2 + ($this->coord[0]['y'] - $this->coord[$count - 1]['y']) ** 2);
 
         for ($i = 0; $i < $count - 1; ++$i) {
-            $perimeter += sqrt(($this->coord[$i + 1]['x'] - $this->coord[$i]['x']) ** 2 + ($this->coord[$i + 1]['y'] - $this->coord[$i]['y']) ** 2);
+            $perimeter += \sqrt(($this->coord[$i + 1]['x'] - $this->coord[$i]['x']) ** 2 + ($this->coord[$i + 1]['y'] - $this->coord[$i]['y']) ** 2);
         }
 
         return $perimeter;
@@ -246,7 +246,7 @@ final class Polygon implements D2ShapeInterface
     public function getBarycenter() : array
     {
         $barycenter = ['x' => 0, 'y' => 0];
-        $count      = count($this->coord);
+        $count      = \count($this->coord);
 
         for ($i = 0; $i < $count - 1; ++$i) {
             $mult             = ($this->coord[$i]['x'] * $this->coord[$i + 1]['y'] - $this->coord[$i + 1]['x'] * $this->coord[$i]['y']);

Math/Geometry/Shape/D2/Rectangle.php

@@ -67,6 +67,6 @@ final class Rectangle implements D2ShapeInterface
      */
     public static function getDiagonal(float $a, float $b) : float
     {
-        return sqrt($a * $a + $b * $b);
+        return \sqrt($a * $a + $b * $b);
     }
 }

Math/Geometry/Shape/D3/Cone.php

@@ -52,7 +52,7 @@ final class Cone implements D3ShapeInterface
      */
     public static function getSurface(float $r, float $h) : float
     {
-        return pi() * $r * ($r + sqrt($h ** 2 + $r ** 2));
+        return pi() * $r * ($r + \sqrt($h ** 2 + $r ** 2));
     }
 
     /**
@@ -67,7 +67,7 @@ final class Cone implements D3ShapeInterface
      */
     public static function getSlantHeight(float $r, float $h) : float
     {
-        return sqrt($h ** 2 + $r ** 2);
+        return \sqrt($h ** 2 + $r ** 2);
     }
 
     /**

Math/Geometry/Shape/D3/RectangularPyramid.php

@@ -54,7 +54,7 @@ final class RectangularPyramid implements D3ShapeInterface
      */
     public static function getSurface(float $a, float $b, float $h) : float
     {
-        return $a * $b + $a * sqrt(($b / 2) ** 2 + $h ** 2) + $b * sqrt(($a / 2) ** 2 + $h ** 2);
+        return $a * $b + $a * \sqrt(($b / 2) ** 2 + $h ** 2) + $b * \sqrt(($a / 2) ** 2 + $h ** 2);
     }
 
     /**
@@ -70,6 +70,6 @@ final class RectangularPyramid implements D3ShapeInterface
      */
     public static function getLateralSurface(float $a, float $b, float $h) : float
     {
-        return $a * sqrt(($b / 2) ** 2 + $h ** 2) + $b * sqrt(($a / 2) ** 2 + $h ** 2);
+        return $a * \sqrt(($b / 2) ** 2 + $h ** 2) + $b * \sqrt(($a / 2) ** 2 + $h ** 2);
     }
 }

Math/Geometry/Shape/D3/Sphere.php

@@ -67,12 +67,12 @@ final class Sphere implements D3ShapeInterface
         //$latDelta = $latTo - $latFrom;
         $lonDelta = $lonTo - $lonFrom;
 
-        $a = pow(cos($latTo) * sin($lonDelta), 2) + pow(cos($latFrom) * sin($latTo) - sin($latFrom) * cos($latTo) * cos($lonDelta), 2);
+        $a = \pow(\cos($latTo) * \sin($lonDelta), 2) + \pow(\cos($latFrom) * \sin($latTo) - \sin($latFrom) * \cos($latTo) * \cos($lonDelta), 2);
-        $b = sin($latFrom) * sin($latTo) + cos($latFrom) * cos($latTo) * cos($lonDelta);
+        $b = \sin($latFrom) * \sin($latTo) + \cos($latFrom) * \cos($latTo) * \cos($lonDelta);
 
-        $angle = atan2(sqrt($a), $b);
+        $angle = atan2(\sqrt($a), $b);
         // Approximation (very good for short distances)
-        // $angle = 2 * asin(sqrt(pow(sin($latDelta / 2), 2) + cos($latFrom) * cos($latTo) * pow(sin($lonDelta / 2), 2)));
+        // $angle = 2 * asin(\sqrt(\pow(\sin($latDelta / 2), 2) + \cos($latFrom) * \cos($latTo) * \pow(\sin($lonDelta / 2), 2)));
 
         return $angle * $radius;
     }
@@ -116,7 +116,7 @@ final class Sphere implements D3ShapeInterface
      */
     public static function getRadiusByVolume(float $v) : float
     {
-        return pow($v * 3 / (4 * pi()), 1 / 3);
+        return \pow($v * 3 / (4 * pi()), 1 / 3);
     }
 
     /**
@@ -147,7 +147,7 @@ final class Sphere implements D3ShapeInterface
      */
     public static function getRadiusBySurface(float $S) : float
     {
-        return sqrt($S / (4 * pi()));
+        return \sqrt($S / (4 * pi()));
     }
 
     /**

Math/Geometry/Shape/D3/Tetrahedron.php

@@ -36,7 +36,7 @@ final class Tetrahedron implements D3ShapeInterface
      */
     public static function getVolume(float $a) : float
     {
-        return $a ** 3 / (6 * sqrt(2));
+        return $a ** 3 / (6 * \sqrt(2));
     }
 
     /**
@@ -50,7 +50,7 @@ final class Tetrahedron implements D3ShapeInterface
      */
     public static function getSurface(float $a) : float
     {
-        return sqrt(3) * $a ** 2;
+        return \sqrt(3) * $a ** 2;
     }
 
     /**
@@ -64,6 +64,6 @@ final class Tetrahedron implements D3ShapeInterface
      */
     public static function getFaceArea(float $a) : float
     {
-        return sqrt(3) / 4 * $a ** 2;
+        return \sqrt(3) / 4 * $a ** 2;
     }
 }

Math/Matrix/CholeskyDecomposition.php

@@ -72,7 +72,7 @@ final class CholeskyDecomposition
 
                 if ($i === $j) {
                     if ($sum >= 0) {
-                        $this->L[$i][$i] = sqrt($sum);
+                        $this->L[$i][$i] = \sqrt($sum);
                     } else {
                         $this->isSpd = false;
                     }

Math/Matrix/EigenvalueDecomposition.php

@@ -401,7 +401,7 @@ final class EigenvalueDecomposition
                     $h            += $this->ort[$i] * $this->ort[$i];
                 }
 
-                $g              = $this->ort[$m] > 0 ? -sqrt($h) : sqrt($h);
+                $g              = $this->ort[$m] > 0 ? -sqrt($h) : \sqrt($h);
                 $h             -= $this->ort[$m] * $g;
                 $this->ort[$m] -= $g;
 
@@ -466,7 +466,7 @@ final class EigenvalueDecomposition
         $r = 0.0;
         $d = 0.0;
 
-        if (abs($yr) > \abs($yi)) {
+        if (\abs($yr) > \abs($yi)) {
             $r = $yi / $yr;
             $d = $yr + $r * $yi;
 
@@ -506,7 +506,7 @@ final class EigenvalueDecomposition
                 $this->E[$i] = 0.0;
             }
 
-            for ($j = max($i - 1, 0); $j < $nn; ++$j) {
+            for ($j = \max($i - 1, 0); $j < $nn; ++$j) {
                 $norm += \abs($this->H[$i][$j]);
             }
         }
@@ -520,7 +520,7 @@ final class EigenvalueDecomposition
                     $s = $norm;
                 }
 
-                if (abs($this->H[$l][$l - 1]) < $eps * $s) {
+                if (\abs($this->H[$l][$l - 1]) < $eps * $s) {
                     break;
                 }
 
@@ -538,7 +538,7 @@ final class EigenvalueDecomposition
                 $w = $this->H[$n][$n - 1] * $this->H[$n - 1][$n];
                 $p = ($this->H[$n - 1][$n - 1] - $this->H[$n][$n]) / 2.0;
                 $q = $p * $p + $w;
-                $z = sqrt(abs($q));
+                $z = \sqrt(\abs($q));
 
                 $this->H[$n][$n]         += $exshift;
                 $this->H[$n - 1][$n - 1] += $exshift;
@@ -556,7 +556,7 @@ final class EigenvalueDecomposition
                     $s = \abs($x) + \abs($z);
                     $p = $x / $s;
                     $q = $z / $s;
-                    $r = sqrt($p * $p + $q * $q);
+                    $r = \sqrt($p * $p + $q * $q);
                     $p = $p / $r;
                     $q = $q / $r;
 

Math/Matrix/LUDecomposition.php

@@ -95,7 +95,7 @@ final class LUDecomposition
 
             for ($i = 0; $i < $this->m; ++$i) {
                 $LUrowi = $this->LU[$i];
-                $kmax   = min($i, $j);
+                $kmax   = \min($i, $j);
                 $s      = 0.0;
 
                 for ($k = 0; $k < $kmax; ++$k) {
@@ -106,7 +106,7 @@ final class LUDecomposition
 
             $p = $j;
             for ($i = $j + 1; $i < $this->m; ++$i) {
-                if (abs($LUcolj[$i]) > abs($LUcolj[$p])) {
+                if (\abs($LUcolj[$i]) > \abs($LUcolj[$p])) {
                     $p = $i;
                 }
             }

Math/Matrix/Matrix.php

@@ -186,8 +186,8 @@ class Matrix implements \ArrayAccess, \Iterator
     public function getSubMatrixByColumnsRows(array $rows, array $cols) : Matrix
     {
         $X       = [[]];
-        $rlength = count($rows);
+        $rlength = \count($rows);
-        $clength = count($cols);
+        $clength = \count($cols);
 
         for ($i = 0; $i <= $rlength; ++$i) {
             for ($j = 0; $j <= $clength; ++$j) {
@@ -215,7 +215,7 @@ class Matrix implements \ArrayAccess, \Iterator
     public function getSubMatrixByColumns(int $iRow, int $lRow, array $cols) : Matrix
     {
         $X      = [[]];
-        $length = count($cols);
+        $length = \count($cols);
 
         for ($i = $iRow; $i <= $lRow; ++$i) {
             for ($j = 0; $j <= $length; ++$j) {
@@ -243,7 +243,7 @@ class Matrix implements \ArrayAccess, \Iterator
     public function getSubMatrixByRows(array $rows, int $iCol, int $lCol) : Matrix
     {
         $X      = [[]];
-        $length = count($rows);
+        $length = \count($rows);
 
         for ($i = 0; $i < $length; ++$i) {
             for ($j = $iCol; $j <= $lCol; ++$j) {
@@ -380,8 +380,8 @@ class Matrix implements \ArrayAccess, \Iterator
      */
     public function setMatrix(array $matrix) : Matrix
     {
-        $this->m      = count($matrix);
+        $this->m      = \count($matrix);
-        $this->n      = count($matrix[0] ?? 1);
+        $this->n      = \count($matrix[0] ?? 1);
         $this->matrix = $matrix;
 
         return $this;
@@ -640,7 +640,7 @@ class Matrix implements \ArrayAccess, \Iterator
             $max = 0;
 
             for ($j = $i; $j < $n; ++$j) {
-                if (abs($arr[$j][$i]) > abs($arr[$max][$i])) {
+                if (\abs($arr[$j][$i]) > \abs($arr[$max][$i])) {
                     $max = $j;
                 }
             }

Math/Number/Complex.php

@@ -117,8 +117,8 @@ final class Complex
     public function sqrt() : Complex
     {
         return new self(
-            sqrt(($this->re + sqrt($this->re ** 2 + $this->im ** 2)) / 2),
+            \sqrt(($this->re + \sqrt($this->re ** 2 + $this->im ** 2)) / 2),
-            ($this->im <=> 0) * sqrt((-$this->re + sqrt($this->re ** 2 + $this->im ** 2)) / 2)
+            ($this->im <=> 0) * \sqrt((-$this->re + \sqrt($this->re ** 2 + $this->im ** 2)) / 2)
         );
     }
 
@@ -131,7 +131,7 @@ final class Complex
      */
     public function abs()
     {
-        return sqrt($this->re ** 2 + $this->im ** 2);
+        return \sqrt($this->re ** 2 + $this->im ** 2);
     }
 
     /**
@@ -411,7 +411,7 @@ final class Complex
         . ($this->im < 0 && $this->re !== 0 ? ' -' : '')
         . ($this->im !== 0 ? (
             ($this->re !== 0 ? ' ' : '') . number_format(
-                ($this->im < 0 && $this->re === 0 ? $this->im : abs($this->im)), $precision
+                ($this->im < 0 && $this->re === 0 ? $this->im : \abs($this->im)), $precision
                 ) . 'i'
             ) : '');
     }

Math/Number/Integer.php

@@ -127,8 +127,8 @@ final class Integer
      */
     public static function greatestCommonDivisor(int $n, int $m) : int
     {
-        $n = abs($n);
+        $n = \abs($n);
-        $m = abs($m);
+        $m = \abs($m);
 
         while ($n !== $m) {
             if ($n > $m) {
@@ -159,7 +159,7 @@ final class Integer
             throw new \Exception('Only odd integers are allowed');
         }
 
-        $a  = (int) ceil(sqrt($value));
+        $a  = (int) ceil(\sqrt($value));
         $b2 = ($a * $a - $value);
         $i  = 1;
 
@@ -169,6 +169,6 @@ final class Integer
             $b2 = ($a * $a - $value);
         }
 
-        return [(int) round($a - sqrt($b2)), (int) round($a + sqrt($b2))];
+        return [(int) \round($a - \sqrt($b2)), (int) \round($a + \sqrt($b2))];
     }
 }

Math/Number/Numbers.php

@@ -95,7 +95,7 @@ final class Numbers
      */
     public static function isSquare(int $n) : bool
     {
-        return abs(((int) sqrt($n)) * ((int) sqrt($n)) - $n) < 0.001;
+        return \abs(((int) \sqrt($n)) * ((int) \sqrt($n)) - $n) < 0.001;
     }
 
     /**

Math/Number/OperationInterface.php

@@ -77,7 +77,7 @@ interface OperationInterface
      *
      * @since  1.0.0
      */
-    public function pow($p);
+    public function \pow($p);
 
     /**
      * Abs of value.
@@ -86,5 +86,5 @@ interface OperationInterface
      *
      * @since  1.0.0
      */
-    public function abs();
+    public function \abs();
 }

Math/Number/Prime.php

@@ -46,7 +46,7 @@ final class Prime
      */
     public static function isMersenne(int $n) : bool
     {
-        $mersenne = log($n + 1, 2);
+        $mersenne = \log($n + 1, 2);
 
         return $mersenne - (int) $mersenne < 0.00001;
     }
@@ -96,14 +96,14 @@ final class Prime
         for ($i = 0; $i < $k; ++$i) {
             $a = mt_rand(2, $n - 1);
 
-            $x = bcpowmod((string) $a, (string) $d, (string) $n);
+            $x = \bcpowmod((string) $a, (string) $d, (string) $n);
 
             if ($x == 1 || $x == $n - 1) {
                 continue;
             }
 
             for ($j = 1; $j < $s; ++$j) {
-                $x = bcmod(bcmul($x, $x), (string) $n);
+                $x = \bcmod(\bcmul($x, $x), (string) $n);
 
                 if ($x == 1) {
                     return false;
@@ -132,7 +132,7 @@ final class Prime
     public static function sieveOfEratosthenes(int $n) : array
     {
         $number = 2;
-        $range  = range(2, $n);
+        $range  = \range(2, $n);
         $primes = array_combine($range, $range);
 
         while ($number * $number < $n) {
@@ -144,7 +144,7 @@ final class Prime
                 unset($primes[$i]);
             }
 
-            $number = next($primes);
+            $number = \next($primes);
         }
 
         return array_values($primes);
@@ -167,7 +167,7 @@ final class Prime
             return true;
         }
 
-        $sqrtN = sqrt($n);
+        $sqrtN = \sqrt($n);
         while ($i <= $sqrtN) {
             if ($n % $i === 0) {
                 return false;

Math/Parser/Evaluator.php

@@ -121,21 +121,21 @@ class Evaluator
                 $output[] = $token;
             } elseif (\strpbrk($token, '^*/+-') !== false) {
                 $o1 = $token;
-                $o2 = end($stack);
+                $o2 = \end($stack);
 
                 while ($o2 !== false && \strpbrk($o2, '^*/+-') !== false
                     && (($operators[$o1]['order'] === -1 && $operators[$o1]['precedence'] <= $operators[$o2]['precedence'])
                         || ($operators[$o1]['order'] === 1 && $operators[$o1]['precedence'] < $operators[$o2]['precedence']))
                 ) {
                     $output[] = \array_pop($stack);
-                    $o2       = end($stack);
+                    $o2       = \end($stack);
                 }
 
                 $stack[] = $o1;
             } elseif ($token === '(') {
                 $stack[] = $token;
             } elseif ($token === ')') {
-                while (end($stack) !== '(') {
+                while (\end($stack) !== '(') {
                     $output[] = \array_pop($stack);
                 }
 
@@ -143,7 +143,7 @@ class Evaluator
             }
         }
 
-        while (count($stack) > 0) {
+        while (\count($stack) > 0) {
             $output[] = \array_pop($stack);
         }
 

Math/Statistic/Average.php

@@ -63,7 +63,7 @@ final class Average
      */
     public static function averageDatasetChange(array $x, int $h = 1) : float
     {
-        $count = count($x);
+        $count = \count($x);
 
         return $h * ($x[$count - 1] - $x[0]) / ($count - 1);
     }
@@ -85,7 +85,7 @@ final class Average
     public static function totalMovingAverage(array $x, int $order, array $weight = null, bool $symmetric = false) : array
     {
         $periods = (int) ($order / 2);
-        $count   = count($x) - ($symmetric ? $periods : 0);
+        $count   = \count($x) - ($symmetric ? $periods : 0);
         $avg     = [];
 
         for ($i = $periods; $i < $count; ++$i) {
@@ -113,7 +113,7 @@ final class Average
     public static function movingAverage(array $x, int $t, int $order, array $weight = null, bool $symmetric = false) : float
     {
         $periods = (int) ($order / 2);
-        $count   = count($x);
+        $count   = \count($x);
 
         if ($t < $periods || ($count < $periods) || ($symmetric && $t + $periods < $count)) {
             throw new \Exception('Periods');
@@ -146,8 +146,8 @@ final class Average
      */
     public static function weightedAverage(array $values, array $weight) : float
     {
-        if (($count = count($values)) !== count($weight)) {
+        if (($count = \count($values)) !== \count($weight)) {
-            throw new InvalidDimensionException(count($values) . 'x' . count($weight));
+            throw new InvalidDimensionException(\count($values) . 'x' . \count($weight));
         }
 
         $avg = 0.0;
@@ -174,7 +174,7 @@ final class Average
      */
     public static function arithmeticMean(array $values) : float
     {
-        $count = count($values);
+        $count = \count($values);
 
         if ($count === 0) {
             throw new ZeroDevisionException();
@@ -197,7 +197,7 @@ final class Average
     public static function mode(array $values) : float
     {
         $count = array_count_values($values);
-        $best  = max($count);
+        $best  = \max($count);
 
         return (float) (array_keys($count, $best)[0] ?? 0.0);
     }
@@ -216,7 +216,7 @@ final class Average
     public static function median(array $values) : float
     {
         sort($values);
-        $count     = count($values);
+        $count     = \count($values);
         $middleval = (int) floor(($count - 1) / 2);
 
         if ($count % 2) {
@@ -246,13 +246,13 @@ final class Average
      */
     public static function geometricMean(array $values, int $offset = 0) : float
     {
-        $count = count($values);
+        $count = \count($values);
 
         if ($count === 0) {
             throw new ZeroDevisionException();
         }
 
-        return pow(\array_product($values), 1 / $count);
+        return \pow(\array_product($values), 1 / $count);
     }
 
     /**
@@ -277,7 +277,7 @@ final class Average
             $values = array_slice($values, $offset, -$offset);
         }
 
-        $count = count($values);
+        $count = \count($values);
         $sum   = 0.0;
 
         foreach ($values as $value) {
@@ -307,11 +307,11 @@ final class Average
     {
         $y    = 0;
         $x    = 0;
-        $size = count($angles);
+        $size = \count($angles);
 
         for ($i = 0; $i < $size; ++$i) {
-            $x += cos(deg2rad($angles[$i]));
+            $x += \cos(deg2rad($angles[$i]));
-            $y += sin(deg2rad($angles[$i]));
+            $y += \sin(deg2rad($angles[$i]));
         }
 
         $x /= $size;
@@ -344,12 +344,12 @@ final class Average
         $coss = 0.0;
 
         foreach ($angles as $a) {
-            $sins += sin(deg2rad($a));
+            $sins += \sin(deg2rad($a));
-            $coss += cos(deg2rad($a));
+            $coss += \cos(deg2rad($a));
         }
 
-        $avgsin = $sins / (0.0 + count($angles));
+        $avgsin = $sins / (0.0 + \count($angles));
-        $avgcos = $coss / (0.0 + count($angles));
+        $avgcos = $coss / (0.0 + \count($angles));
         $avgang = rad2deg(atan2($avgsin, $avgcos));
 
         while ($avgang < 0.0) {

Math/Statistic/Basic.php

@@ -51,7 +51,7 @@ final class Basic
         $freaquency = [];
         $sum        = 1;
 
-        if (!($isArray = is_array(reset($values)))) {
+        if (!($isArray = is_array(\reset($values)))) {
             $sum = array_sum($values);
         }
 

Math/Statistic/Correlation.php

@@ -66,7 +66,7 @@ final class Correlation
     {
         $squaredMeanDeviation = MeasureOfDispersion::squaredMeanDeviation($x);
         $mean                 = Average::arithmeticMean($x);
-        $count                = count($x);
+        $count                = \count($x);
         $sum                  = 0.0;
 
         for ($i = $k; $i < $count; ++$i) {

Math/Statistic/Forecast/Error.php

@@ -139,7 +139,7 @@ class Error
      */
     public static function getRootMeanSquaredError(array $errors) : float
     {
-        return sqrt(Average::arithmeticMean(Functions::powerInt($errors, 2)));
+        return \sqrt(Average::arithmeticMean(Functions::powerInt($errors, 2)));
     }
 
     /**
@@ -158,8 +158,8 @@ class Error
      */
     public static function getCoefficientOfDetermination(array $observed, array $forecasted) : float
     {
-        $countO = count($observed);
+        $countO = \count($observed);
-        $countF = count($forecasted);
+        $countF = \count($forecasted);
         $sum1   = 0;
         $sum2   = 0;
         $meanY  = Average::arithmeticMean($observed);
@@ -224,7 +224,7 @@ class Error
      */
     public static function getAkaikeInformationCriterion(float $sse, int $observations, int $predictors) : float
     {
-        return $observations * log($sse / $observations) + 2 * ($predictors + 2);
+        return $observations * \log($sse / $observations) + 2 * ($predictors + 2);
     }
 
     /**
@@ -258,7 +258,7 @@ class Error
      */
     public static function getSchwarzBayesianInformationCriterion(float $sse, int $observations, int $predictors) : float
     {
-        return $observations * log($sse / $observations) + ($predictors + 2) * log($observations);
+        return $observations * \log($sse / $observations) + ($predictors + 2) * \log($observations);
     }
 
     /**
@@ -291,7 +291,7 @@ class Error
         $error = [];
 
         foreach ($observed as $key => $value) {
-            $error[] = 200 * abs($value - $forecasted[$key]) / ($value + $forecasted[$key]);
+            $error[] = 200 * \abs($value - $forecasted[$key]) / ($value + $forecasted[$key]);
         }
 
         return Average::arithmeticMean($error);
@@ -335,7 +335,7 @@ class Error
         $sum  = 0.0;
 
         foreach ($observed as $value) {
-            $sum += abs($value - $mean);
+            $sum += \abs($value - $mean);
         }
 
         return $error / MeasureOfDispersion::meanDeviation($observed);
@@ -383,7 +383,7 @@ class Error
     public static function getScaledErrorArray(array $errors, array $observed, int $m = 1) : array
     {
         $scaled = [];
-        $naive  = 1 / (count($observed) - $m) * self::getNaiveForecast($observed, $m);
+        $naive  = 1 / (\count($observed) - $m) * self::getNaiveForecast($observed, $m);
 
         foreach ($errors as $error) {
             $error[] = $error / $naive;
@@ -405,7 +405,7 @@ class Error
      */
     public static function getScaledError(float $error, array $observed, int $m = 1) : float
     {
-        return $error / (1 / (count($observed) - $m) * self::getNaiveForecast($observed, $m));
+        return $error / (1 / (\count($observed) - $m) * self::getNaiveForecast($observed, $m));
     }
 
     /**
@@ -421,10 +421,10 @@ class Error
     private static function getNaiveForecast(array $observed, int $m = 1) : float
     {
         $sum   = 0.0;
-        $count = count($observed);
+        $count = \count($observed);
 
         for ($i = 0 + $m; $i < $count; ++$i) {
-            $sum += abs($observed[$i] - $observed[$i - $m]);
+            $sum += \abs($observed[$i] - $observed[$i - $m]);
         }
 
         return $sum;

Math/Statistic/Forecast/Regression/LevelLogRegression.php

@@ -31,12 +31,12 @@ class LevelLogRegression extends RegressionAbstract
      */
     public static function getRegression(array $x, array $y) : array
     {
-        if (($c = count($x)) !== count($y)) {
+        if (($c = \count($x)) !== \count($y)) {
-            throw new InvalidDimensionException($c . 'x' . count($y));
+            throw new InvalidDimensionException($c . 'x' . \count($y));
         }
 
         for ($i = 0; $i < $c; ++$i) {
-            $x[$i] = log($x[$i]);
+            $x[$i] = \log($x[$i]);
         }
 
         return parent::getRegression($x, $y);

Math/Statistic/Forecast/Regression/LogLevelRegression.php

@@ -31,12 +31,12 @@ class LogLevelRegression extends RegressionAbstract
      */
     public static function getRegression(array $x, array $y) : array
     {
-        if (($c = count($x)) !== count($y)) {
+        if (($c = \count($x)) !== \count($y)) {
-            throw new InvalidDimensionException($c . 'x' . count($y));
+            throw new InvalidDimensionException($c . 'x' . \count($y));
         }
 
         for ($i = 0; $i < $c; ++$i) {
-            $y[$i] = log($y[$i]);
+            $y[$i] = \log($y[$i]);
         }
 
         return parent::getRegression($x, $y);

Math/Statistic/Forecast/Regression/LogLogRegression.php

@@ -31,13 +31,13 @@ class LogLogRegression extends RegressionAbstract
      */
     public static function getRegression(array $x, array $y) : array
     {
-        if (($c = count($x)) !== count($y)) {
+        if (($c = \count($x)) !== \count($y)) {
-            throw new InvalidDimensionException($c . 'x' . count($y));
+            throw new InvalidDimensionException($c . 'x' . \count($y));
         }
 
         for ($i = 0; $i < $c; ++$i) {
-            $x[$i] = log($x[$i]);
+            $x[$i] = \log($x[$i]);
-            $y[$i] = log($y[$i]);
+            $y[$i] = \log($y[$i]);
         }
 
         return parent::getRegression($x, $y);

Math/Statistic/Forecast/Regression/MultipleLinearRegression.php

@@ -22,11 +22,11 @@ class MultipleLinearRegression
      */
     public static function getRegression(array $x, array $y) : array
     {
-        $X = new Matrix(count($x), count($x[0]));
+        $X = new Matrix(\count($x), \count($x[0]));
         $X->setMatrix($x);
         $XT = $X->transpose();
 
-        $Y = new Matrix(count($y));
+        $Y = new Matrix(\count($y));
         $Y->setMatrix($y);
 
         return $XT->mult($X)->inverse()->mult($XT)->mult($Y)->getMatrix();

Math/Statistic/Forecast/Regression/RegressionAbstract.php

@@ -44,8 +44,8 @@ abstract class RegressionAbstract
      */
     public static function getRegression(array $x, array $y) : array
     {
-        if (count($x) !== count($y)) {
+        if (\count($x) !== \count($y)) {
-            throw new InvalidDimensionException(count($x) . 'x' . count($y));
+            throw new InvalidDimensionException(\count($x) . 'x' . \count($y));
         }
 
         $b1 = self::getBeta1($x, $y);
@@ -68,7 +68,7 @@ abstract class RegressionAbstract
      */
     public static function getStandardErrorOfRegression(array $errors) : float
     {
-        $count = count($errors);
+        $count = \count($errors);
         $sum   = 0.0;
 
         for ($i = 0; $i < $count; ++$i) {
@@ -76,7 +76,7 @@ abstract class RegressionAbstract
         }
 
         // todo: could this be - 1 depending on the different definitions?!
-        return sqrt(1 / ($count - 2) * $sum);
+        return \sqrt(1 / ($count - 2) * $sum);
     }
 
     /**
@@ -93,7 +93,7 @@ abstract class RegressionAbstract
      */
     public static function getPredictionInterval(float $forecasted, array $x, array $errors, float $multiplier = ForecastIntervalMultiplier::P_95) : array
     {
-        $count = count($x);
+        $count = \count($x);
         $meanX = Average::arithmeticMean($x);
         $sum   = 0.0;
 
@@ -101,7 +101,7 @@ abstract class RegressionAbstract
             $sum += ($x[$i] - $meanX) ** 2;
         }
 
-        $interval = $multiplier * self::getStandardErrorOfRegression($errors) * sqrt(1 + 1 / $count + $sum / (($count - 1) * MeasureOfDispersion::standardDeviation($x) ** 2));
+        $interval = $multiplier * self::getStandardErrorOfRegression($errors) * \sqrt(1 + 1 / $count + $sum / (($count - 1) * MeasureOfDispersion::standardDeviation($x) ** 2));
 
         return [$forecasted - $interval, $forecasted + $interval];
     }
@@ -120,7 +120,7 @@ abstract class RegressionAbstract
      */
     private static function getBeta1(array $x, array $y) : float
     {
-        $count = count($x);
+        $count = \count($x);
         $meanX = Average::arithmeticMean($x);
         $meanY = Average::arithmeticMean($y);
 

Math/Statistic/MeasureOfDispersion.php

@@ -52,8 +52,8 @@ final class MeasureOfDispersion
     public static function range(array $values) : float
     {
         sort($values);
-        $end   = end($values);
+        $end   = \end($values);
-        $start = reset($values);
+        $start = \reset($values);
 
         return $end - $start;
     }
@@ -106,7 +106,7 @@ final class MeasureOfDispersion
             $sum += ($value - $mean) ** 2;
         }
 
-        return sqrt($sum / (count($values) - 1));
+        return \sqrt($sum / (\count($values) - 1));
     }
 
     /**
@@ -129,7 +129,7 @@ final class MeasureOfDispersion
      */
     public static function sampleVariance(array $values, float $mean = null) : float
     {
-        $count = count($values);
+        $count = \count($values);
 
         if ($count < 2) {
             throw new ZeroDevisionException();
@@ -159,7 +159,7 @@ final class MeasureOfDispersion
      */
     public static function empiricalVariance(array $values, array $probabilities = [], float $mean = null) : float
     {
-        $count          = count($values);
+        $count          = \count($values);
         $hasProbability = !empty($probabilities);
 
         if ($count === 0) {
@@ -196,14 +196,14 @@ final class MeasureOfDispersion
      */
     public static function empiricalCovariance(array $x, array $y, float $meanX = null, float $meanY = null) : float
     {
-        $count = count($x);
+        $count = \count($x);
 
         if ($count < 2) {
             throw new ZeroDevisionException();
         }
 
-        if ($count !== count($y)) {
+        if ($count !== \count($y)) {
-            throw new InvalidDimensionException($count . 'x' . count($y));
+            throw new InvalidDimensionException($count . 'x' . \count($y));
         }
 
         $xMean = $meanX !== null ? $meanX : Average::arithmeticMean($x);
@@ -251,7 +251,7 @@ final class MeasureOfDispersion
             $sum += ($xi - $mean);
         }
 
-        return $sum / count($x);
+        return $sum / \count($x);
     }
 
     /**
@@ -270,10 +270,10 @@ final class MeasureOfDispersion
         $sum  = 0.0;
 
         foreach ($x as $xi) {
-            $sum += abs($xi - $mean);
+            $sum += \abs($xi - $mean);
         }
 
-        return $sum / count($x);
+        return $sum / \count($x);
     }
 
     /**
@@ -295,6 +295,6 @@ final class MeasureOfDispersion
             $sum += ($xi - $mean) ** 2;
         }
 
-        return $sum / count($x);
+        return $sum / \count($x);
     }
 }

Math/Stochastic/Distribution/BernoulliDistribution.php

@@ -148,7 +148,7 @@ class BernoulliDistribution
      */
     public static function getMgf(float $p, float $t) : float
     {
-        return (1 - $p) + $p * exp($t);
+        return (1 - $p) + $p * \exp($t);
     }
 
     /**
@@ -162,7 +162,7 @@ class BernoulliDistribution
      */
     public static function getSkewness(float $p) : float
     {
-        return (1 - 2 * $p) / sqrt($p * (1 - $p));
+        return (1 - 2 * $p) / \sqrt($p * (1 - $p));
     }
 
     /**
@@ -176,7 +176,7 @@ class BernoulliDistribution
      */
     public static function getEntropy(float $p) : float
     {
-        return -(1 - $p) * log(1 - $p) - $p * log($p);
+        return -(1 - $p) * \log(1 - $p) - $p * \log($p);
     }
 
     /**

Math/Stochastic/Distribution/BinomialDistribution.php

@@ -57,7 +57,7 @@ class BinomialDistribution
      */
     public static function getMgf(int $n, float $t, float $p) : float
     {
-        return pow(1 - $p + $p * exp($t), $n);
+        return \pow(1 - $p + $p * \exp($t), $n);
     }
 
     /**
@@ -72,7 +72,7 @@ class BinomialDistribution
      */
     public static function getSkewness(int $n, float $p) : float
     {
-        return (1 - 2 * $p) / sqrt($n * $p * (1 - $p));
+        return (1 - 2 * $p) / \sqrt($n * $p * (1 - $p));
     }
 
     /**
@@ -142,7 +142,7 @@ class BinomialDistribution
      */
     public static function getPmf(int $n, int $k, float $p) : float
     {
-        return Functions::binomialCoefficient($n, $k) * pow($p, $k) * pow(1 - $p, $n - $k);
+        return Functions::binomialCoefficient($n, $k) * \pow($p, $k) * \pow(1 - $p, $n - $k);
     }
 
     /**

Math/Stochastic/Distribution/CauchyDistribution.php

@@ -95,7 +95,7 @@ class CauchyDistribution
      */
     public static function getEntropy(float $gamma) : float
     {
-        return log(4 * M_PI * $gamma);
+        return \log(4 * M_PI * $gamma);
     }
 
     public static function getRandom()

Math/Stochastic/Distribution/ChiSquaredDistribution.php

@@ -90,7 +90,7 @@ class ChiSquaredDistribution
      */
     public static function testHypothesis(array $dataset, array $expected, float $significance = 0.05, int $df = 0) : array
     {
-        if (($count = count($dataset)) !== count($expected)) {
+        if (($count = \count($dataset)) !== \count($expected)) {
             throw new \Exception('Dimension');
         }
 
@@ -117,7 +117,7 @@ class ChiSquaredDistribution
             }
         }
 
-        $key = key(end(self::TABLE[$df]));
+        $key = \key(\end(self::TABLE[$df]));
         $p   = 1 - ($p ?? ($key === false ? 1 : (float) $key));
 
         return ['P' => $p, 'H0' => ($p > $significance), 'df' => $df];
@@ -134,10 +134,10 @@ class ChiSquaredDistribution
      */
     public static function getDegreesOfFreedom(array $values) : int
     {
-        if (is_array($first = reset($values))) {
+        if (is_array($first = \reset($values))) {
-            return (count($values) - 1) * (count($first) - 1);
+            return (\count($values) - 1) * (\count($first) - 1);
         } else {
-            return count($values) - 1;
+            return \count($values) - 1;
         }
     }
 
@@ -159,7 +159,7 @@ class ChiSquaredDistribution
             throw new \Exception('Out of bounds');
         }
 
-        return 1 / (pow(2, $df / 2) * Gamma::lanczosApproximationReal(($df / 2))) * pow($x, $df / 2 - 1) * exp(-$x / 2);
+        return 1 / (\pow(2, $df / 2) * Gamma::lanczosApproximationReal(($df / 2))) * \pow($x, $df / 2 - 1) * \exp(-$x / 2);
     }
 
     /**
@@ -173,7 +173,7 @@ class ChiSquaredDistribution
      */
     public static function getMode(int $df) : int
     {
-        return max([$df - 2, 0]);
+        return \max([$df - 2, 0]);
     }
 
     /**
@@ -236,7 +236,7 @@ class ChiSquaredDistribution
             throw new \Exception('Out of bounds');
         }
 
-        return pow(1 - 2 * $t, -$df / 2);
+        return \pow(1 - 2 * $t, -$df / 2);
     }
 
     /**
@@ -250,7 +250,7 @@ class ChiSquaredDistribution
      */
     public static function getSkewness(int $df) : float
     {
-        return sqrt(8 / $df);
+        return \sqrt(8 / $df);
     }
 
     /**

Math/Stochastic/Distribution/ExponentialDistribution.php

@@ -36,7 +36,7 @@ class ExponentialDistribution
      */
     public static function getPdf(float $x, float $lambda) : float
     {
-        return $x >= 0 ? $lambda * exp(-$lambda * $x) : 0;
+        return $x >= 0 ? $lambda * \exp(-$lambda * $x) : 0;
     }
 
     /**
@@ -51,7 +51,7 @@ class ExponentialDistribution
      */
     public static function getCdf(float $x, float $lambda) : float
     {
-        return $x >= 0 ? 1 - exp($lambda * $x) : 0;
+        return $x >= 0 ? 1 - \exp($lambda * $x) : 0;
     }
 
     /**
@@ -105,7 +105,7 @@ class ExponentialDistribution
      */
     public static function getVariance(float $lambda) : float
     {
-        return pow($lambda, -2);
+        return \pow($lambda, -2);
     }
 
     /**

Math/Stochastic/Distribution/GeometricDistribution.php

@@ -36,7 +36,7 @@ class GeometricDistribution
      */
     public static function getPmf(float $p, int $k) : float
     {
-        return pow(1 - $p, $k - 1) * $p;
+        return \pow(1 - $p, $k - 1) * $p;
     }
 
     /**
@@ -51,7 +51,7 @@ class GeometricDistribution
      */
     public static function getCdf(float $p, int $k) : float
     {
-        return 1 - pow(1 - $p, $k);
+        return 1 - \pow(1 - $p, $k);
     }
 
     /**
@@ -91,7 +91,7 @@ class GeometricDistribution
      */
     public static function getMedian(float $p) : float
     {
-        return ceil(-1 / (log(1 - $p, 2)));
+        return ceil(-1 / (\log(1 - $p, 2)));
     }
 
     /**
@@ -120,7 +120,7 @@ class GeometricDistribution
      */
     public static function getMgf(float $p, float $t) : float
     {
-        return $p * exp($t) / (1 - (1 - $p) * exp($t));
+        return $p * \exp($t) / (1 - (1 - $p) * \exp($t));
     }
 
     /**
@@ -134,7 +134,7 @@ class GeometricDistribution
      */
     public static function getSkewness(float $lambda) : float
     {
-        return (2 - $lambda) / sqrt(1 - $lambda);
+        return (2 - $lambda) / \sqrt(1 - $lambda);
     }
 
     /**

Math/Stochastic/Distribution/LaplaceDistribution.php

@@ -37,7 +37,7 @@ class LaplaceDistribution
      */
     public static function getPdf(float $x, float $mu, float $b) : float
     {
-        return 1 / (2 * $b) * exp(-abs($x - $mu) / $b);
+        return 1 / (2 * $b) * \exp(-abs($x - $mu) / $b);
     }
 
     /**
@@ -53,7 +53,7 @@ class LaplaceDistribution
      */
     public static function getCdf(float $x, float $mu, float $b) : float
     {
-        return $x < $mu ? exp(($x - $mu) / $b) / 2 : 1 - exp(-($x - $mu) / $b) / 2;
+        return $x < $mu ? \exp(($x - $mu) / $b) / 2 : 1 - \exp(-($x - $mu) / $b) / 2;
     }
 
     /**
@@ -131,7 +131,7 @@ class LaplaceDistribution
             throw new \Exception('Out of bounds');
         }
 
-        return exp($mu * $t) / (1 - $b ** 2 * $t ** 2);
+        return \exp($mu * $t) / (1 - $b ** 2 * $t ** 2);
     }
 
     /**

Math/Stochastic/Distribution/NormalDistribution.php

@@ -38,7 +38,7 @@ class NormalDistribution
      */
     public static function getPdf(float $x, float $mu, float $sig) : float
     {
-        return 1 / ($sig * sqrt(2 * pi())) * exp(-($x - $mu) ** 2 / (2 * $sig ** 2));
+        return 1 / ($sig * \sqrt(2 * pi())) * \exp(-($x - $mu) ** 2 / (2 * $sig ** 2));
     }
 
     /**
@@ -110,7 +110,7 @@ class NormalDistribution
      */
     public static function getMgf(float $t, float $mu, float $sig) : float
     {
-        return exp($mu * $t + ($sig ** 2 * $t ** 2) / 2);
+        return \exp($mu * $t + ($sig ** 2 * $t ** 2) / 2);
     }
 
     /**

Math/Stochastic/Distribution/PoissonDistribution.php

@@ -30,7 +30,7 @@ class PoissonDistribution
     /**
      * Get density.
      *
-     * Formula: e^(k * ln(lambda) - lambda - log(gamma(k+1))
+     * Formula: e^(k * ln(lambda) - lambda - \log(gamma(k+1))
      *
      * @param int   $k      Value k
      * @param float $lambda Lambda
@@ -41,7 +41,7 @@ class PoissonDistribution
      */
     public static function getPmf(int $k, float $lambda) : float
     {
-        return exp($k * log($lambda) - $lambda - log(Gamma::getGammaInteger($k + 1)));
+        return \exp($k * \log($lambda) - $lambda - \log(Gamma::getGammaInteger($k + 1)));
     }
 
     /**
@@ -59,10 +59,10 @@ class PoissonDistribution
         $sum = 0.0;
 
         for ($i = 0; $i < $k + 1; ++$i) {
-            $sum += pow($lambda, $i) / Functions::fact($i);
+            $sum += \pow($lambda, $i) / Functions::fact($i);
         }
 
-        return exp(-$lambda) * $sum;
+        return \exp(-$lambda) * $sum;
     }
 
     /**
@@ -133,7 +133,7 @@ class PoissonDistribution
      */
     public static function getMgf(float $lambda, float $t) : float
     {
-        return exp($lambda * (exp($t) - 1));
+        return \exp($lambda * (\exp($t) - 1));
     }
 
     /**
@@ -147,7 +147,7 @@ class PoissonDistribution
      */
     public static function getSkewness(float $lambda) : float
     {
-        return pow($lambda, -1 / 2);
+        return \pow($lambda, -1 / 2);
     }
 
     /**
@@ -161,7 +161,7 @@ class PoissonDistribution
      */
     public static function getFisherInformation(float $lambda) : float
     {
-        return pow($lambda, -1);
+        return \pow($lambda, -1);
     }
 
     /**
@@ -175,7 +175,7 @@ class PoissonDistribution
      */
     public static function getExKurtosis(float $lambda) : float
     {
-        return pow($lambda, -1);
+        return \pow($lambda, -1);
     }
 
     public static function getRandom()

Math/Stochastic/Distribution/UniformDistributionContinuous.php

@@ -91,7 +91,7 @@ class UniformDistributionContinuous
      */
     public static function getMgf(int $t, float $a, float $b) : float
     {
-        return $t === 0 ? 1 : (exp($t * $b) - exp($t * $a)) / ($t * ($b - $a));
+        return $t === 0 ? 1 : (\exp($t * $b) - \exp($t * $a)) / ($t * ($b - $a));
     }
 
     /**

Math/Stochastic/Distribution/UniformDistributionDiscrete.php

@@ -59,7 +59,7 @@ class UniformDistributionDiscrete
             throw new \Exception('Out of bounds');
         }
 
-        return (floor($k) - $a + 1) / ($b - $a + 1);
+        return (\floor($k) - $a + 1) / ($b - $a + 1);
     }
 
     /**
@@ -75,7 +75,7 @@ class UniformDistributionDiscrete
      */
     public static function getMgf(int $t, float $a, float $b) : float
     {
-        return (exp($a * $t) - exp(($b + 1) * $t)) / (($b - $a + 1) * (1 - exp($t)));
+        return (\exp($a * $t) - \exp(($b + 1) * $t)) / (($b - $a + 1) * (1 - \exp($t)));
     }
 
     /**

Math/Stochastic/NaiveBayesFilter.php

@@ -44,11 +44,11 @@ class NaiveBayesFilter
         $n = 0.0;
         foreach ($toMatch as $element) {
             if (isset($normalizedDict[$element])) {
-                $n += log(1 - $normalizedDict[$element]['match'] / $normalizedDict[$element]['total']) - log($normalizedDict[$element]['match'] / $normalizedDict[$element]['total']);
+                $n += \log(1 - $normalizedDict[$element]['match'] / $normalizedDict[$element]['total']) - \log($normalizedDict[$element]['match'] / $normalizedDict[$element]['total']);
             }
         }
 
-        return 1 / (1 + exp($n));
+        return 1 / (1 + \exp($n));
     }
 
     private function normalizeDictionary() : array

Message/Console/Header.php

@@ -77,7 +77,7 @@ final class Header extends HeaderAbstract
             return false;
         }
 
-        $key = strtolower($key);
+        $key = \strtolower($key);
 
         if (!$overwrite && isset($this->header[$key])) {
             return false;
@@ -105,7 +105,7 @@ final class Header extends HeaderAbstract
      */
     public static function isSecurityHeader(string $key) : bool
     {
-        $key = strtolower($key);
+        $key = \strtolower($key);
 
         return $key === 'content-security-policy'
             || $key === 'x-xss-protection'

Message/Mail/EmailAbstract.php

@@ -145,7 +145,7 @@ class EmailAbstract
      */
     public function connect(string $user = '', string $pass = '') : void
     {
-        $this->mailbox = substr($this->mailbox, 0, -1) . ($this->ssl ? '/ssl/validate-cert' : '/novalidate-cert') . '}';
+        $this->mailbox = \substr($this->mailbox, 0, -1) . ($this->ssl ? '/ssl/validate-cert' : '/novalidate-cert') . '}';
 
         // /novalidate-cert
         if ($this->con === null) {
@@ -235,7 +235,7 @@ class EmailAbstract
     {
         $ids = imap_search($this->con, $option, SE_FREE, 'UTF-8');
 
-        return is_array($ids) ? imap_fetch_overview($this->con, implode(',', $ids)) : [];
+        return is_array($ids) ? imap_fetch_overview($this->con, \implode(',', $ids)) : [];
     }
 
     /**

Model/Html/Meta.php

@@ -240,7 +240,7 @@ class Meta implements RenderableInterface
      */
     public function render() : string
     {
-        return (count($this->keywords) > 0 ? '<meta name="keywords" content="' . ViewAbstract::html(implode(',', $this->keywords)) . '">"' : '')
+        return (\count($this->keywords) > 0 ? '<meta name="keywords" content="' . ViewAbstract::html(\implode(',', $this->keywords)) . '">"' : '')
         . (!empty($this->author) ? '<meta name="author" content="' . ViewAbstract::html($this->author) . '">' : '')
         . (!empty($this->description) ? '<meta name="description" content="' . ViewAbstract::html($this->description) . '">' : '')
         . (!empty($this->charset) ? '<meta charset="' . ViewAbstract::html($this->charset) . '">' : '')

Module/ModuleManager.php

@@ -147,14 +147,14 @@ final class ModuleManager
                     $uriPdo  = '';
 
                     $i = 1;
-                    $c = count($uriHash);
+                    $c = \count($uriHash);
 
                     for ($k = 0; $k < $c; ++$k) {
                         $uriPdo .= ':pid' . $i . ',';
                         ++$i;
                     }
 
-                    $uriPdo = rtrim($uriPdo, ',');
+                    $uriPdo = \rtrim($uriPdo, ',');
 
                     /* TODO: make join in order to see if they are active */
                     $sth = $this->app->dbPool->get('select')->con->prepare(
@@ -250,8 +250,8 @@ final class ModuleManager
     {
         if (empty($this->all)) {
             chdir($this->modulePath);
-            $files = glob('*', GLOB_ONLYDIR);
+            $files = \glob('*', GLOB_ONLYDIR);
-            $c     = count($files);
+            $c     = \count($files);
 
             for ($i = 0; $i < $c; ++$i) {
                 $path = $this->modulePath . '/' . $files[$i] . '/info.json';

Socket/Client/Client.php

@@ -76,7 +76,7 @@ class Client extends SocketAbstract
             try {
                 $i++;
                 $msg = 'disconnect';
-                socket_write($this->sock, $msg, strlen($msg));
+                socket_write($this->sock, $msg, \strlen($msg));
 
                 $read = [$this->sock];
 
@@ -86,7 +86,7 @@ class Client extends SocketAbstract
                 // socket_strerror(socket_last_error());
                 //}
 
-                if (count($read) > 0) {
+                if (\count($read) > 0) {
                     $data = socket_read($this->sock, 1024);
 
                     /* Server no data */
@@ -95,7 +95,7 @@ class Client extends SocketAbstract
                     }
 
                     /* Normalize */
-                    $data = trim($data);
+                    $data = \trim($data);
 
                     if (!empty($data)) {
                         $data = \explode(' ', $data);

Socket/Server/ClientManager.php

@@ -28,7 +28,7 @@ class ClientManager
 
     public function get($id)
     {
-        return $this->clients[$id] ?? new NullClientConnection(uniqid(), null);
+        return $this->clients[$id] ?? new NullClientConnection(\uniqid(), null);
     }
 
     public function getBySocket($socket)
@@ -39,7 +39,7 @@ class ClientManager
             }
         }
 
-        return new NullClientConnection(uniqid(), null);
+        return new NullClientConnection(\uniqid(), null);
     }
 
     public function remove($id)

Socket/Server/Server.php

@@ -223,7 +223,7 @@ class Server extends SocketAbstract
     public function connectClient($socket) : void
     {
         $this->app->logger->debug('Connecting client...');
-        $this->clientManager->add($client = new ClientConnection(uniqid(), $socket));
+        $this->clientManager->add($client = new ClientConnection(\uniqid(), $socket));
         $this->conn[$client->getId()]     = $socket;
         $this->app->logger->debug('Connected client.');
     }
@@ -262,19 +262,19 @@ class Server extends SocketAbstract
 
     private function unmask($payload) : string
     {
-        $length = ord($payload[1]) & 127;
+        $length = \ord($payload[1]) & 127;
         if ($length == 126) {
-            $masks = substr($payload, 4, 4);
+            $masks = \substr($payload, 4, 4);
-            $data  = substr($payload, 8);
+            $data  = \substr($payload, 8);
         } elseif ($length == 127) {
-            $masks = substr($payload, 10, 4);
+            $masks = \substr($payload, 10, 4);
-            $data  = substr($payload, 14);
+            $data  = \substr($payload, 14);
         } else {
-            $masks = substr($payload, 2, 4);
+            $masks = \substr($payload, 2, 4);
-            $data  = substr($payload, 6);
+            $data  = \substr($payload, 6);
         }
         $text = '';
-        for ($i = 0; $i < strlen($data); ++$i) {
+        for ($i = 0; $i < \strlen($data); ++$i) {
             $text .= $data[$i] ^ $masks[$i % 4];
         }
 

Stdlib/Base/Enum.php

@@ -71,7 +71,7 @@ abstract class Enum
         $constants = self::getConstants();
         $keys      = array_keys($constants);
 
-        return $constants[$keys[mt_rand(0, count($constants) - 1)]];
+        return $constants[$keys[mt_rand(0, \count($constants) - 1)]];
     }
 
     /**
@@ -135,7 +135,7 @@ abstract class Enum
      */
     public static function count() : int
     {
-        return count(self::getConstants());
+        return \count(self::getConstants());
     }
 
     /**

Stdlib/Base/Iban.php

@@ -75,7 +75,7 @@ class Iban implements \Serializable
      */
     public static function normalize(string $iban) : string
     {
-        return strtoupper(\str_replace(' ', '', $iban));
+        return \strtoupper(\str_replace(' ', '', $iban));
     }
 
     /**
@@ -87,7 +87,7 @@ class Iban implements \Serializable
      */
     public function getLength() : int
     {
-        return strlen($this->iban);
+        return \strlen($this->iban);
     }
 
     /**

Stdlib/Base/SmartDateTime.php

@@ -163,7 +163,7 @@ class SmartDateTime extends \DateTime
      */
     public function getFirstDayOfMonth() : int
     {
-        return getdate(mktime(0, 0, 0, (int) $this->format('m'), 1, (int) $this->format('Y')))['wday'];
+        return getdate(\mktime(0, 0, 0, (int) $this->format('m'), 1, (int) $this->format('Y')))['wday'];
     }
 
     /**

Stdlib/Graph/Graph.php

@@ -369,7 +369,7 @@ class Graph
      */
     public function getOrder() : int
     {
-        return count($this->nodes);
+        return \count($this->nodes);
     }
 
     /**
@@ -383,7 +383,7 @@ class Graph
      */
     public function getSize() : int
     {
-        return count($this->edges);
+        return \count($this->edges);
     }
 
     /**
@@ -405,7 +405,7 @@ class Graph
                     continue;
                 }
 
-                $diameter = max($diameter, $this->getFloydWarshallShortestPath($node1, $node2));
+                $diameter = \max($diameter, $this->getFloydWarshallShortestPath($node1, $node2));
             }
         }
 

Stdlib/Graph/Tree.php

@@ -82,7 +82,7 @@ class Tree extends Graph
         $neighbors = $this->getNeighbors($currentNode);
 
         foreach ($neighbors as $neighbor) {
-            $depth = max($depth, $depth + $this->getMaxDepth($neighbor));
+            $depth = \max($depth, $depth + $this->getMaxDepth($neighbor));
         }
 
         return $depth;
@@ -114,7 +114,7 @@ class Tree extends Graph
 
         $depth = empty($depth) ? 0 : $depth;
 
-        return min($depth) + 1;
+        return \min($depth) + 1;
     }
 
     /**
@@ -148,7 +148,7 @@ class Tree extends Graph
      */
     public function isLeaf(Node $node) : bool
     {
-        return count($this->getEdgesOfNode($node)) === 1;
+        return \count($this->getEdgesOfNode($node)) === 1;
     }
 
     /**
@@ -189,12 +189,12 @@ class Tree extends Graph
      */
     public function isFull(int $type) : bool
     {
-        if (count($this->edges) % $type !== 0) {
+        if (\count($this->edges) % $type !== 0) {
             return false;
         }
 
         foreach ($this->nodes as $node) {
-            $neighbors = count($this->getNeighbors($node));
+            $neighbors = \count($this->getNeighbors($node));
 
             if ($neighbors !== $type && $neighbors !== 0) {
                 return false;
@@ -216,7 +216,7 @@ class Tree extends Graph
      */
     public function preOrder(Node $node, \Closure $callback) : void
     {
-        if (count($this->nodes) === 0) {
+        if (\count($this->nodes) === 0) {
             return;
         }
 
@@ -241,7 +241,7 @@ class Tree extends Graph
      */
     public function postOrder(Node $node, \Closure $callback) : void
     {
-        if (count($this->nodes) === 0) {
+        if (\count($this->nodes) === 0) {
             return;
         }
 

Stdlib/Map/MultiMap.php

@@ -86,7 +86,7 @@ class MultiMap implements \Countable
      */
     public function add(array $keys, $value, bool $overwrite = true) : bool
     {
-        $id       = count($this->values);
+        $id       = \count($this->values);
         $inserted = false;
 
         if ($this->keyType !== KeyType::SINGLE) {
@@ -205,14 +205,14 @@ class MultiMap implements \Countable
                 $keys = Permutation::permut($key);
 
                 foreach ($keys as $key => $value) {
-                    $key = implode(':', $value);
+                    $key = \implode(':', $value);
 
                     if (isset($this->keys[$key])) {
                         return $this->values[$this->keys[$key]];
                     }
                 }
             } else {
-                $key = implode(':', $key);
+                $key = \implode(':', $key);
             }
         }
 
@@ -558,6 +558,6 @@ class MultiMap implements \Countable
      */
     public function count() : int
     {
-        return count($this->values);
+        return \count($this->values);
     }
 }

Stdlib/Queue/PriorityQueue.php

@@ -64,7 +64,7 @@ class PriorityQueue implements \Countable, \Serializable
     public function insert($data, string $job, float $priority = 1.0) : int
     {
         do {
-            $key = rand();
+            $key = \rand();
         } while (array_key_exists($key, $this->queue));
 
         if ($this->count === 0) {
@@ -201,6 +201,6 @@ class PriorityQueue implements \Countable, \Serializable
     public function unserialize($data)
     {
         $this->queue = \json_decode($data);
-        $this->count = count($this->queue);
+        $this->count = \count($this->queue);
     }
 }

System/File/FileUtils.php

@@ -56,7 +56,7 @@ final class FileUtils
      */
     public static function getExtensionType(string $extension) : int
     {
-        $extension = strtolower($extension);
+        $extension = \strtolower($extension);
 
         if (\in_array($extension, self::CODE_EXTENSION)) {
             return ExtensionType::CODE;
@@ -93,7 +93,7 @@ final class FileUtils
     public static function absolute(string $origPath) : string
     {
         if (!\file_exists($origPath) || \realpath($origPath) === false) {
-            $startsWithSlash = strpos($origPath, '/') === 0 ? '/' : '';
+            $startsWithSlash = \strpos($origPath, '/') === 0 ? '/' : '';
 
             $path  = [];
             $parts = \explode('/', $origPath);

System/File/Ftp/Directory.php

@@ -36,17 +36,17 @@ class Directory extends FileAbstract implements DirectoryInterface
 {
     public static function ftpConnect(Http $http)
     {
-        $con = ftp_connect($http->getBase() . $http->getPath(), $http->getPort());
+        $con = \ftp_connect($http->getBase() . $http->getPath(), $http->getPort());
 
-        ftp_login($con, $http->getUser(), $http->getPass());
+        \ftp_login($con, $http->getUser(), $http->getPass());
-        ftp_chdir($con, $http->getPath()); // todo: is this required ?
+        \ftp_chdir($con, $http->getPath()); // todo: is this required ?
 
         return $con;
     }
 
     public static function ftpExists($con, string $path)
     {
-        $list = ftp_nlist($con, LocalFile::parent($path));
+        $list = \ftp_nlist($con, LocalFile::parent($path));
 
         return \in_array(LocalFile::name($path), $list);
     }
@@ -54,13 +54,13 @@ class Directory extends FileAbstract implements DirectoryInterface
     public static function ftpCreate($con, string $path, int $permission, bool $recursive)
     {
         $parts = \explode('/', $path);
-        ftp_chdir($con, '/' . $parts[0]);
+        \ftp_chdir($con, '/' . $parts[0]);
 
         foreach ($parts as $part) {
             if (self::ftpExists($con, $part)) {
-                ftp_\mkdir($con, $part);
+                \ftp_\kdir($con, $part);
-                ftp_chdir($con, $part);
+                \ftp_chdir($con, $part);
-                ftp_chmod($con, $permission, $part);
+                \ftp_chmod($con, $permission, $part);
             }
         }
     }
@@ -274,7 +274,7 @@ class Directory extends FileAbstract implements DirectoryInterface
      */
     public function rewind()
     {
-        reset($this->nodes);
+        \reset($this->nodes);
     }
 
     /**
@@ -282,7 +282,7 @@ class Directory extends FileAbstract implements DirectoryInterface
      */
     public function current()
     {
-        return current($this->nodes);
+        return \current($this->nodes);
     }
 
     /**
@@ -290,7 +290,7 @@ class Directory extends FileAbstract implements DirectoryInterface
      */
     public function key()
     {
-        return key($this->nodes);
+        return \key($this->nodes);
     }
 
     /**
@@ -298,7 +298,7 @@ class Directory extends FileAbstract implements DirectoryInterface
      */
     public function next()
     {
-        return next($this->nodes);
+        return \next($this->nodes);
     }
 
     /**
@@ -306,7 +306,7 @@ class Directory extends FileAbstract implements DirectoryInterface
      */
     public function valid()
     {
-        $key = key($this->nodes);
+        $key = \key($this->nodes);
 
         return ($key !== null && $key !== false);
     }

System/File/Local/Directory.php

@@ -136,7 +136,7 @@ final class Directory extends FileAbstract implements DirectoryInterface
         parent::index();
 
         foreach (\glob($this->path . DIRECTORY_SEPARATOR . $this->filter) as $filename) {
-            if (!StringUtils::endsWith(trim($filename), '.')) {
+            if (!StringUtils::endsWith(\trim($filename), '.')) {
                 $file = \is_dir($filename) ? new self($filename) : new File($filename);
 
                 $this->addNode($file);

System/File/Local/FileAbstract.php

@@ -101,8 +101,8 @@ abstract class FileAbstract implements ContainerInterface
      */
     public function __construct(string $path)
     {
-        $this->path = rtrim($path, '/\\');
+        $this->path = \rtrim($path, '/\\');
-        $this->name = basename($path);
+        $this->name = \basename($path);
 
         $this->createdAt = new \DateTime('now');
         $this->changedAt = new \DateTime('now');

System/File/Storage.php

@@ -68,7 +68,7 @@ final class Storage
             }
         } else {
             $stg = $env;
-            $env = ucfirst(strtolower($env));
+            $env = \ucfirst(\strtolower($env));
             $env = __NAMESPACE__ . '\\' . $env . '\\' . $env . 'Storage';
 
             try {

System/OperatingSystem.php

@@ -43,11 +43,11 @@ final class OperatingSystem
      */
     public static function getSystem() : int
     {
-        if (stristr(PHP_OS, 'DAR') !== false) {
+        if (\stristr(PHP_OS, 'DAR') !== false) {
             return SystemType::OSX;
-        } elseif (stristr(PHP_OS, 'WIN') !== false) {
+        } elseif (\stristr(PHP_OS, 'WIN') !== false) {
             return SystemType::WIN;
-        } elseif (stristr(PHP_OS, 'LINUX') !== false) {
+        } elseif (\stristr(PHP_OS, 'LINUX') !== false) {
             return SystemType::LINUX;
         }
 

System/SystemUtils.php

@@ -90,7 +90,7 @@ final class SystemUtils
                 return $memUsage;
             }
 
-            $free     = trim($free);
+            $free     = \trim($free);
             $freeArr  = \explode("\n", $free);
             $mem      = \explode(' ', $freeArr[1]);
             $mem      = \array_values(\array_filter($mem));

Uri/Argument.php

@@ -257,7 +257,7 @@ final class Argument implements UriInterface
      */
     public function getPathElement(int $pos = null) : string
     {
-        return explode('/', $this->path)[$pos] ?? '';
+        return \explode('/', $this->path)[$pos] ?? '';
     }
 
     /**
@@ -265,7 +265,7 @@ final class Argument implements UriInterface
      */
     public function getPathElements() : array
     {
-        return explode('/', $this->path);
+        return \explode('/', $this->path);
     }
 
     /**

Uri/UriFactory.php

@@ -116,7 +116,7 @@ final class UriFactory
     {
         self::setQuery('/scheme', $uri->getScheme());
         self::setQuery('/host', $uri->getHost());
-        self::setQuery('/base', rtrim($uri->getBase(), '/'));
+        self::setQuery('/base', \rtrim($uri->getBase(), '/'));
         self::setQuery('/rootPath', $uri->getRootPath());
         self::setQuery('?', $uri->getQuery());
         self::setQuery('%', $uri->__toString());
@@ -189,10 +189,10 @@ final class UriFactory
     {
         $parts = \explode('&', \str_replace('?', '&', $url));
 
-        if (count($parts) >= 2) {
+        if (\count($parts) >= 2) {
             $pars   = \array_slice($parts, 1);
             $comps  = [];
-            $length = count($pars);
+            $length = \count($pars);
 
             for ($i = 0; $i < $length; ++$i) {
                 $spl = \explode('=', $pars[$i]);

Utils/ArrayUtils.php

@@ -48,7 +48,7 @@ final class ArrayUtils
      */
     public static function unsetArray(string $path, array $data, string $delim = '/') : array
     {
-        $nodes  = \explode($delim, trim($path, $delim));
+        $nodes  = \explode($delim, \trim($path, $delim));
         $prevEl = null;
         $el     = &$data;
         $node   = null;
@@ -89,7 +89,7 @@ final class ArrayUtils
      */
     public static function setArray(string $path, array $data, $value, string $delim = '/', bool $overwrite = false) : array
     {
-        $pathParts = \explode($delim, trim($path, $delim));
+        $pathParts = \explode($delim, \trim($path, $delim));
         $current   = &$data;
 
         if ($pathParts === false) {
@@ -128,7 +128,7 @@ final class ArrayUtils
      */
     public static function getArray(string $path, array $data, string $delim = '/')
     {
-        $pathParts = \explode($delim, trim($path, $delim));
+        $pathParts = \explode($delim, \trim($path, $delim));
         $current   = $data;
 
         if ($pathParts === false) {
@@ -237,7 +237,7 @@ final class ArrayUtils
                 $key = '\'' . $key . '\'';
             }
 
-            switch (gettype($value)) {
+            switch (\gettype($value)) {
                 case 'array':
                     $str .= $key . ' => ' . self::stringify($value) . ', ';
                     break;
@@ -306,11 +306,11 @@ final class ArrayUtils
      */
     public static function getArg(string $id, array $args) : ?string
     {
-        if (($key = \array_search($id, $args)) === false || $key === count($args) - 1) {
+        if (($key = \array_search($id, $args)) === false || $key === \count($args) - 1) {
             return null;
         }
 
-        return trim($args[(int) $key + 1], '" ');
+        return \trim($args[(int) $key + 1], '" ');
     }
 
     /**
@@ -375,7 +375,7 @@ final class ArrayUtils
      */
     public static function arraySum(array $array, int $start = 0, int $count = 0)
     {
-        $count = $count === 0 ? count($array) : $start + $count;
+        $count = $count === 0 ? \count($array) : $start + $count;
         $sum   = 0;
         $array = array_values($array);
 

Utils/Barcode/C128Abstract.php

@@ -285,7 +285,7 @@ abstract class C128Abstract
             $checksum   += $values[$activeKey] * $pos;
         }
 
-        $codeString .= static::$CODEARRAY[$keys[($checksum - (intval($checksum / 103) * 103))]];
+        $codeString .= static::$CODEARRAY[$keys[($checksum - (\intval($checksum / 103) * 103))]];
 
         return $codeString;
     }

Utils/Barcode/C128a.php

@@ -91,6 +91,6 @@ class C128a extends C128Abstract
      */
     public function setContent(string $content) : void
     {
-        parent::setContent(strtoupper($content));
+        parent::setContent(\strtoupper($content));
     }
 }

Utils/Barcode/C128c.php

@@ -91,15 +91,15 @@ class C128c extends C128Abstract
         $keys       = array_keys(self::$CODEARRAY);
         $values     = array_flip($keys);
         $codeString = '';
-        $length     = strlen($this->content);
+        $length     = \strlen($this->content);
         $checksum   = self::$CHECKSUM;
         $checkPos   = 1;
 
         for ($pos = 1; $pos <= $length; $pos += 2) {
             if ($pos + 1 <= $length) {
-                $activeKey = substr($this->content, ($pos - 1), 2);
+                $activeKey = \substr($this->content, ($pos - 1), 2);
             } else {
-                $activeKey = substr($this->content, ($pos - 1), 1) . '0';
+                $activeKey = \substr($this->content, ($pos - 1), 1) . '0';
             }
 
             $codeString .= self::$CODEARRAY[$activeKey];
@@ -107,7 +107,7 @@ class C128c extends C128Abstract
             $checkPos++;
         }
 
-        $codeString .= self::$CODEARRAY[$keys[($checksum - (intval($checksum / 103) * 103))]];
+        $codeString .= self::$CODEARRAY[$keys[($checksum - (\intval($checksum / 103) * 103))]];
 
         return $codeString;
     }

Utils/Barcode/C25.php

@@ -109,13 +109,13 @@ class C25 extends C128Abstract
     protected function generateCodeString() : string
     {
         $codeString  = '';
-        $length      = strlen($this->content);
+        $length      = \strlen($this->content);
-        $arrayLength = count(self::$CODEARRAY);
+        $arrayLength = \count(self::$CODEARRAY);
         $temp        = [];
 
         for ($posX = 1; $posX <= $length; $posX++) {
             for ($posY = 0; $posY < $arrayLength; $posY++) {
-                if (substr($this->content, ($posX - 1), 1) == self::$CODEARRAY[$posY]) {
+                if (\substr($this->content, ($posX - 1), 1) == self::$CODEARRAY[$posY]) {
                     $temp[$posX] = self::$CODEARRAY2[$posY];
                 }
             }
@@ -126,7 +126,7 @@ class C25 extends C128Abstract
                 $temp1 = \explode('-', $temp[$posX]);
                 $temp2 = \explode('-', $temp[($posX + 1)]);
 
-                $count = count($temp1);
+                $count = \count($temp1);
                 for ($posY = 0; $posY < $count; $posY++) {
                     $codeString .= $temp1[$posY] . $temp2[$posY];
                 }

Utils/Barcode/C39.php

@@ -72,7 +72,7 @@ class C39 extends C128Abstract
      */
     public function setContent(string $content) : void
     {
-        parent::setContent(strtoupper($content));
+        parent::setContent(\strtoupper($content));
     }
 
     /**
@@ -85,7 +85,7 @@ class C39 extends C128Abstract
     protected function generateCodeString() : string
     {
         $codeString = '';
-        $length     = strlen($this->content);
+        $length     = \strlen($this->content);
 
         for ($X = 1; $X <= $length; $X++) {
             $codeString .= self::$CODEARRAY[substr($this->content, ($X - 1), 1)] . '1';

Utils/Barcode/Codebar.php

@@ -73,7 +73,7 @@ class Codebar extends C128Abstract
      */
     public function setContent(string $content) : void
     {
-        parent::setContent(strtoupper($content));
+        parent::setContent(\strtoupper($content));
     }
 
     /**
@@ -86,12 +86,12 @@ class Codebar extends C128Abstract
     protected function generateCodeString() : string
     {
         $codeString = '';
-        $length     = strlen($this->content);
+        $length     = \strlen($this->content);
-        $lenCodearr = count(self::$CODEARRAY);
+        $lenCodearr = \count(self::$CODEARRAY);
 
         for ($posX = 1; $posX <= $length; $posX++) {
             for ($posY = 0; $posY < $lenCodearr; $posY++) {
-                if (substr($this->content, ($posX - 1), 1) == self::$CODEARRAY[$posY]) {
+                if (\substr($this->content, ($posX - 1), 1) == self::$CODEARRAY[$posY]) {
                     $codeString .= self::$CODEARRAY2[$posY] . '1';
                 }
             }