utf8/stristr.php

   1 <?php defined('SYSPATH') OR die('No direct script access.');
   2 /**
   3  * UTF8::stristr
   4  *
   5  * @package    Kohana
   6  * @author     Kohana Team
   7  * @copyright  (c) 2007-2012 Kohana Team
   8  * @copyright  (c) 2005 Harry Fuecks
   9  * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt
  10  */
  11 function _stristr($str, $search)
  12 {
  13         if (UTF8::is_ascii($str) AND UTF8::is_ascii($search))
  14                 return stristr($str, $search);
  15
  16         if ($search == '')
  17                 return $str;
  18
  19         $str_lower = UTF8::strtolower($str);
  20         $search_lower = UTF8::strtolower($search);
  21
  22         preg_match('/^(.*?)'.preg_quote($search_lower, '/').'/s', $str_lower, $matches);
  23
  24         if (isset($matches[1]))
  25                 return substr($str, strlen($matches[1]));
  26
  27         return FALSE;
  28 }