16589c60cSAndreas Gohr<?php 2*d4f83172SAndreas Gohr 36589c60cSAndreas Gohr/** 46589c60cSAndreas Gohr * compatibility functions 56589c60cSAndreas Gohr * 66589c60cSAndreas Gohr * This file contains a few functions that might be missing from the PHP build 76589c60cSAndreas Gohr */ 86589c60cSAndreas Gohr 96589c60cSAndreas Gohrif (!function_exists('ctype_space')) { 106589c60cSAndreas Gohr /** 116589c60cSAndreas Gohr * Check for whitespace character(s) 126589c60cSAndreas Gohr * 136589c60cSAndreas Gohr * @param string $text 146589c60cSAndreas Gohr * @return bool 15a4c648ffSAndreas Gohr * @see ctype_space 166589c60cSAndreas Gohr */ 17d868eb89SAndreas Gohr function ctype_space($text) 18d868eb89SAndreas Gohr { 196589c60cSAndreas Gohr if (!is_string($text)) return false; #FIXME original treats between -128 and 255 inclusive as ASCII chars 206589c60cSAndreas Gohr if (trim($text) === '') return true; 216589c60cSAndreas Gohr return false; 226589c60cSAndreas Gohr } 236589c60cSAndreas Gohr} 246589c60cSAndreas Gohr 256589c60cSAndreas Gohrif (!function_exists('ctype_digit')) { 266589c60cSAndreas Gohr /** 276589c60cSAndreas Gohr * Check for numeric character(s) 286589c60cSAndreas Gohr * 296589c60cSAndreas Gohr * @param string $text 306589c60cSAndreas Gohr * @return bool 31a4c648ffSAndreas Gohr * @see ctype_digit 326589c60cSAndreas Gohr */ 33d868eb89SAndreas Gohr function ctype_digit($text) 34d868eb89SAndreas Gohr { 356589c60cSAndreas Gohr if (!is_string($text)) return false; #FIXME original treats between -128 and 255 inclusive as ASCII chars 366589c60cSAndreas Gohr if (preg_match('/^\d+$/', $text)) return true; 376589c60cSAndreas Gohr return false; 386589c60cSAndreas Gohr } 396589c60cSAndreas Gohr} 4092b9f196SAndreas Gohr 4192b9f196SAndreas Gohrif (!function_exists('gzopen') && function_exists('gzopen64')) { 4292b9f196SAndreas Gohr /** 4392b9f196SAndreas Gohr * work around for PHP compiled against certain zlib versions #865 4492b9f196SAndreas Gohr * 4592b9f196SAndreas Gohr * @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists 4692b9f196SAndreas Gohr * 4792b9f196SAndreas Gohr * @param string $filename 4892b9f196SAndreas Gohr * @param string $mode 4992b9f196SAndreas Gohr * @param int $use_include_path 5092b9f196SAndreas Gohr * @return mixed 5192b9f196SAndreas Gohr */ 52d868eb89SAndreas Gohr function gzopen($filename, $mode, $use_include_path = 0) 53d868eb89SAndreas Gohr { 5492b9f196SAndreas Gohr return gzopen64($filename, $mode, $use_include_path); 558457f8ceSAndreas Gohr } 568457f8ceSAndreas Gohr} 578457f8ceSAndreas Gohr 588457f8ceSAndreas Gohrif (!function_exists('gzseek') && function_exists('gzseek64')) { 598457f8ceSAndreas Gohr /** 608457f8ceSAndreas Gohr * work around for PHP compiled against certain zlib versions #865 618457f8ceSAndreas Gohr * 628457f8ceSAndreas Gohr * @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists 638457f8ceSAndreas Gohr * 648457f8ceSAndreas Gohr * @param resource $zp 658457f8ceSAndreas Gohr * @param int $offset 668457f8ceSAndreas Gohr * @param int $whence 678457f8ceSAndreas Gohr * @return int 688457f8ceSAndreas Gohr */ 69d868eb89SAndreas Gohr function gzseek($zp, $offset, $whence = SEEK_SET) 70d868eb89SAndreas Gohr { 718457f8ceSAndreas Gohr return gzseek64($zp, $offset, $whence); 728457f8ceSAndreas Gohr } 738457f8ceSAndreas Gohr} 748457f8ceSAndreas Gohr 758457f8ceSAndreas Gohrif (!function_exists('gztell') && function_exists('gztell64')) { 768457f8ceSAndreas Gohr /** 778457f8ceSAndreas Gohr * work around for PHP compiled against certain zlib versions #865 788457f8ceSAndreas Gohr * 798457f8ceSAndreas Gohr * @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists 808457f8ceSAndreas Gohr * 818457f8ceSAndreas Gohr * @param resource $zp 828457f8ceSAndreas Gohr * @return int 838457f8ceSAndreas Gohr */ 84d868eb89SAndreas Gohr function gztell($zp) 85d868eb89SAndreas Gohr { 868457f8ceSAndreas Gohr return gztell64($zp); 8792b9f196SAndreas Gohr } 8892b9f196SAndreas Gohr} 89a4c648ffSAndreas Gohr 90a4c648ffSAndreas Gohr/** 91a4c648ffSAndreas Gohr * polyfill for PHP < 8 92a4c648ffSAndreas Gohr * @see https://www.php.net/manual/en/function.str-starts-with 93a4c648ffSAndreas Gohr */ 94a4c648ffSAndreas Gohrif (!function_exists('str_starts_with')) { 95a4c648ffSAndreas Gohr function str_starts_with(string $haystack, string $needle) 96a4c648ffSAndreas Gohr { 97a4c648ffSAndreas Gohr return empty($needle) || strpos($haystack, $needle) === 0; 98a4c648ffSAndreas Gohr } 99a4c648ffSAndreas Gohr} 100a4c648ffSAndreas Gohr 101a4c648ffSAndreas Gohr/** 102a4c648ffSAndreas Gohr * polyfill for PHP < 8 103a4c648ffSAndreas Gohr * @see https://www.php.net/manual/en/function.str-contains 104a4c648ffSAndreas Gohr */ 105a4c648ffSAndreas Gohrif (!function_exists('str_contains')) { 106a4c648ffSAndreas Gohr function str_contains(string $haystack, string $needle) 107a4c648ffSAndreas Gohr { 108a4c648ffSAndreas Gohr return empty($needle) || strpos($haystack, $needle) !== false; 109a4c648ffSAndreas Gohr } 110a4c648ffSAndreas Gohr} 111a4c648ffSAndreas Gohr 112a4c648ffSAndreas Gohr/** 113a4c648ffSAndreas Gohr * polyfill for PHP < 8 114a4c648ffSAndreas Gohr * @see https://www.php.net/manual/en/function.str-ends-with 115a4c648ffSAndreas Gohr */ 116a4c648ffSAndreas Gohrif (!function_exists('str_ends_with')) { 117a4c648ffSAndreas Gohr function str_ends_with(string $haystack, string $needle) 118a4c648ffSAndreas Gohr { 119a4c648ffSAndreas Gohr return empty($needle) || substr($haystack, -strlen($needle)) === $needle; 120a4c648ffSAndreas Gohr } 121a4c648ffSAndreas Gohr} 122