utf8/str_split.php

   1 <?php defined('SYSPATH') OR die('No direct script access.');
   2 /**
   3  * UTF8::str_split
   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 _str_split($str, $split_length = 1)
  12 {
  13         $split_length = (int) $split_length;
  14
  15         if (UTF8::is_ascii($str))
  16                 return str_split($str, $split_length);
  17
  18         if ($split_length < 1)
  19                 return FALSE;
  20
  21         if (UTF8::strlen($str) <= $split_length)
  22                 return array($str);
  23
  24         preg_match_all('/.{'.$split_length.'}|[^\x00]{1,'.$split_length.'}$/us', $str, $matches);
  25
  26         return $matches[0];
  27 }