website_jukni/dokuwiki/inc/compatibility.php
2017-12-29 15:51:59 +01:00

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2.2 KiB
PHP

<?php
/**
* compatibility functions
*
* This file contains a few functions that might be missing from the PHP build
*/
if(!function_exists('ctype_space')) {
/**
* Check for whitespace character(s)
*
* @see ctype_space
* @param string $text
* @return bool
*/
function ctype_space($text) {
if(!is_string($text)) return false; #FIXME original treats between -128 and 255 inclusive as ASCII chars
if(trim($text) === '') return true;
return false;
}
}
if(!function_exists('ctype_digit')) {
/**
* Check for numeric character(s)
*
* @see ctype_digit
* @param string $text
* @return bool
*/
function ctype_digit($text) {
if(!is_string($text)) return false; #FIXME original treats between -128 and 255 inclusive as ASCII chars
if(preg_match('/^\d+$/', $text)) return true;
return false;
}
}
if(!function_exists('gzopen') && function_exists('gzopen64')) {
/**
* work around for PHP compiled against certain zlib versions #865
*
* @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists
*
* @param string $filename
* @param string $mode
* @param int $use_include_path
* @return mixed
*/
function gzopen($filename, $mode, $use_include_path = 0) {
return gzopen64($filename, $mode, $use_include_path);
}
}
if(!function_exists('gzseek') && function_exists('gzseek64')) {
/**
* work around for PHP compiled against certain zlib versions #865
*
* @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists
*
* @param resource $zp
* @param int $offset
* @param int $whence
* @return int
*/
function gzseek($zp, $offset, $whence = SEEK_SET) {
return gzseek64($zp, $offset, $whence);
}
}
if(!function_exists('gztell') && function_exists('gztell64')) {
/**
* work around for PHP compiled against certain zlib versions #865
*
* @link http://stackoverflow.com/questions/23417519/php-zlib-gzopen-not-exists
*
* @param resource $zp
* @return int
*/
function gztell($zp) {
return gztell64($zp);
}
}