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
12use Symfony\Polyfill\Php56 as p;
13
14if (PHP_VERSION_ID >= 50600) {
15    return;
16}
17
18if (!function_exists('hash_equals')) {
19    function hash_equals($knownString, $userInput) { return p\Php56::hash_equals($knownString, $userInput); }
20}
21if (extension_loaded('ldap') && !defined('LDAP_ESCAPE_FILTER')) {
22    define('LDAP_ESCAPE_FILTER', 1);
23}
24if (extension_loaded('ldap') && !defined('LDAP_ESCAPE_DN')) {
25    define('LDAP_ESCAPE_DN', 2);
26}
27
28if (extension_loaded('ldap') && !function_exists('ldap_escape')) {
29    function ldap_escape($subject, $ignore = '', $flags = 0) { return p\Php56::ldap_escape($subject, $ignore, $flags); }
30}
31
32if (50509 === PHP_VERSION_ID && 4 === PHP_INT_SIZE) {
33    // Missing functions in PHP 5.5.9 - affects 32 bit builds of Ubuntu 14.04LTS
34    // See https://bugs.launchpad.net/ubuntu/+source/php5/+bug/1315888
35    if (!function_exists('gzopen') && function_exists('gzopen64')) {
36        function gzopen($filename, $mode, $use_include_path = 0) { return gzopen64($filename, $mode, $use_include_path); }
37    }
38    if (!function_exists('gzseek') && function_exists('gzseek64')) {
39        function gzseek($zp, $offset, $whence = SEEK_SET) { return gzseek64($zp, $offset, $whence); }
40    }
41    if (!function_exists('gztell') && function_exists('gztell64')) {
42        function gztell($zp) { return gztell64($zp); }
43    }
44}
45