inc/compatibility.php

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