git.maemo.org Git - speedfreak/blob - Server/system/core/utf8/str_ireplace.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * utf8::str_ireplace
   4  *
   5  * @package    Core
   6  * @author     Kohana Team
   7  * @copyright  (c) 2007 Kohana Team
   8  * @copyright  (c) 2005 Harry Fuecks
   9  * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
  10  */
  11 function _str_ireplace($search, $replace, $str, & $count = NULL)
  12 {
  13         if (utf8::is_ascii($search) AND utf8::is_ascii($replace) AND utf8::is_ascii($str))
  14                 return str_ireplace($search, $replace, $str, $count);
  15
  16         if (is_array($str))
  17         {
  18                 foreach ($str as $key => $val)
  19                 {
  20                         $str[$key] = utf8::str_ireplace($search, $replace, $val, $count);
  21                 }
  22                 return $str;
  23         }
  24
  25         if (is_array($search))
  26         {
  27                 $keys = array_keys($search);
  28
  29                 foreach ($keys as $k)
  30                 {
  31                         if (is_array($replace))
  32                         {
  33                                 if (array_key_exists($k, $replace))
  34                                 {
  35                                         $str = utf8::str_ireplace($search[$k], $replace[$k], $str, $count);
  36                                 }
  37                                 else
  38                                 {
  39                                         $str = utf8::str_ireplace($search[$k], '', $str, $count);
  40                                 }
  41                         }
  42                         else
  43                         {
  44                                 $str = utf8::str_ireplace($search[$k], $replace, $str, $count);
  45                         }
  46                 }
  47                 return $str;
  48         }
  49
  50         $search = utf8::strtolower($search);
  51         $str_lower = utf8::strtolower($str);
  52
  53         $total_matched_strlen = 0;
  54         $i = 0;
  55
  56         while (preg_match('/(.*?)'.preg_quote($search, '/').'/s', $str_lower, $matches))
  57         {
  58                 $matched_strlen = strlen($matches[0]);
  59                 $str_lower = substr($str_lower, $matched_strlen);
  60
  61                 $offset = $total_matched_strlen + strlen($matches[1]) + ($i * (strlen($replace) - 1));
  62                 $str = substr_replace($str, $replace, $offset, strlen($search));
  63
  64                 $total_matched_strlen += $matched_strlen;
  65                 $i++;
  66         }
  67
  68         $count += $i;
  69         return $str;
  70 }