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42 lines
814 B
PHP
42 lines
814 B
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Polyfill\Php54;
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/**
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* @author Nicolas Grekas <p@tchwork.com>
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*
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* @internal
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*/
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final class Php54
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{
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public static function hex2bin($data)
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{
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$len = strlen($data);
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if (null === $len) {
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return;
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}
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if ($len % 2) {
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trigger_error('hex2bin(): Hexadecimal input string must have an even length', E_USER_WARNING);
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return false;
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}
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$data = pack('H*', $data);
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if (false !== strpos($data, "\0")) {
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return false;
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}
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return $data;
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}
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}
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