system/core/utf8/strlen.php

   1 <?php defined('SYSPATH') OR die('No direct access allowed.');
   2 /**
   3  * utf8::strlen
   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 _strlen($str)
  12 {
  13         // Try mb_strlen() first because it's faster than combination of is_ascii() and strlen()
  14         if (SERVER_UTF8)
  15                 return mb_strlen($str);
  16
  17         if (utf8::is_ascii($str))
  18                 return strlen($str);
  19
  20         return strlen(utf8_decode($str));
  21 }