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