vendor/symfony/polyfill-php54/Php54.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Polyfill\Php54;
  13
  14 /**
  15  * @author Nicolas Grekas <p@tchwork.com>
  16  *
  17  * @internal
  18  */
  19 final class Php54
  20 {
  21     public static function hex2bin($data)
  22     {
  23         $len = \strlen($data);
  24
  25         if (null === $len) {
  26             return;
  27         }
  28         if ($len % 2) {
  29             trigger_error('hex2bin(): Hexadecimal input string must have an even length', E_USER_WARNING);
  30
  31             return false;
  32         }
  33
  34         return pack('H*', $data);
  35     }
  36 }