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

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * utf8::str_split
   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_split($str, $split_length = 1)
  12 {
  13         $split_length = (int) $split_length;
  14
  15         if (utf8::is_ascii($str))
  16         {
  17                 return str_split($str, $split_length);
  18         }
  19
  20         if ($split_length < 1)
  21         {
  22                 return FALSE;
  23         }
  24
  25         if (utf8::strlen($str) <= $split_length)
  26         {
  27                 return array($str);
  28         }
  29
  30         preg_match_all('/.{'.$split_length.'}|[^\x00]{1,'.$split_length.'}$/us', $str, $matches);
  31
  32         return $matches[0];
  33 }