1<?php 2 3/** 4 * compatibility functions 5 * 6 * This file contains a few functions that might be missing from the PHP build 7 */ 8 9if (!function_exists('ctype_space')) { 10 /** 11 * Check for whitespace character(s) 12 * 13 * @param string $text 14 * @return bool 15 * @see ctype_space 16 */ 17 function ctype_space($text) 18 { 19 if (!is_string($text)) return false; #FIXME original treats between -128 and 255 inclusive as ASCII chars 20 if (trim($text) === '') return true; 21 return false; 22 } 23} 24 25if (!function_exists('ctype_digit')) { 26 /** 27 * Check for numeric character(s) 28 * 29 * @param string $text 30 * @return bool 31 * @see ctype_digit 32 */ 33 function ctype_digit($text) 34 { 35 if (!is_string($text)) return false; #FIXME original treats between -128 and 255 inclusive as ASCII chars 36 if (preg_match('/^\d+$/', $text)) return true; 37 return false; 38 } 39} 40 41if (!function_exists('gzopen') && function_exists('gzopen64')) { 42 /** 43 * work around for PHP compiled against certain zlib versions #865 44 * 45 * @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists 46 * 47 * @param string $filename 48 * @param string $mode 49 * @param int $use_include_path 50 * @return mixed 51 */ 52 function gzopen($filename, $mode, $use_include_path = 0) 53 { 54 return gzopen64($filename, $mode, $use_include_path); 55 } 56} 57 58if (!function_exists('gzseek') && function_exists('gzseek64')) { 59 /** 60 * work around for PHP compiled against certain zlib versions #865 61 * 62 * @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists 63 * 64 * @param resource $zp 65 * @param int $offset 66 * @param int $whence 67 * @return int 68 */ 69 function gzseek($zp, $offset, $whence = SEEK_SET) 70 { 71 return gzseek64($zp, $offset, $whence); 72 } 73} 74 75if (!function_exists('gztell') && function_exists('gztell64')) { 76 /** 77 * work around for PHP compiled against certain zlib versions #865 78 * 79 * @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists 80 * 81 * @param resource $zp 82 * @return int 83 */ 84 function gztell($zp) 85 { 86 return gztell64($zp); 87 } 88} 89