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Ip converter/lookup (country)

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Can be considered as converter since ip->country is performed
This commit is contained in:
Dennis Eichhorn 2016-07-21 15:00:44 +02:00
parent 33e28c775a
commit 92fa72e07a
1 changed files with 87 additions and 0 deletions
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Utils/Converter/Ip.php Normal file
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<?php
/**
* Orange Management
*
* PHP Version 7.0
*
* @category TBD
* @package TBD
* @author OMS Development Team <dev@oms.com>
* @author Dennis Eichhorn <d.eichhorn@oms.com>
* @copyright 2013 Dennis Eichhorn
* @license OMS License 1.0
* @version 1.0.0
* @link http://orange-management.com
*/
namespace phpOMS\Utils\Converter;
/**
* Ip converter.
*
* @category Framework
* @package phpOMS\Utils\Converter
* @author OMS Development Team <dev@oms.com>
* @author Dennis Eichhorn <d.eichhorn@oms.com>
* @license OMS License 1.0
* @link http://orange-management.com
* @since 1.0.0
*/
class Ip
{
const IP_TABLE_PATH = __DIR__ . '/../../Localization/Default/Ip/ipGeoLocation.csv';
const IP_TABLE_ITERATIONS = 100;
private function __construct() {}
public static function ip2Float(string $ip) : float
{
$split = explode('.', $ip);
return $split[0] * (256 ** 3) + $split[1] * (256 ** 2) + $split[2] * (256 ** 1) + $split[3];
}
public static function ip2Country(string $ip) : string
{
$fh = fopen(self::IP_TABLE_PATH, 'r');
fseek($fh, 0, SEEK_END);
$end = ftell($fh);
fseek($fh, 0);
$start = 0;
$current = $start;
$ip = self::ip2Float($ip);
$country = '';
$counter = 0;
while($counter < self::IP_TABLE_ITERATIONS) {
$line = fgets($fh, 150);
if($current !== 0) {
$line = fgets($fh, 150);
}
$split = explode(',', $line);
if($ip >= $split[0] && $ip <= $split[1]) {
$country = $split[2];
break;
}
if($ip > $split[1]) {
$larger = true;
$start = $current;
fseek($fh, ($end - $current) / 2, SEEK_CUR);
} else {
$larger = false;
$end = $current;
fseek($fh, ($start - $current) / 2, SEEK_CUR);
}
$counter++;
$current = ftell($fh);
}
fclose($fh);
return $country;
}
}