JoniJnm.es

function kn_mb_substr($str, $start, $length=NULL, $encoding=NULL) {
	if ($length === NULL) $length = strlen($str);
	if ($encoding === NULL) $encoding = KUNENA_CHARSET;
	if (!function_exists('mb_substr'))
	{
		if (CKunenaTools::isJoomla15())
		{
			require_once(JPATH_LIBRARIES.DS.'phputf8'.DS.'utf8.php');
		}
		else
		{
			return substr($str, $start, $length);
		}
	}
	return mb_substr($str, $start, $length, $encoding);
}

function kn_mb_substr($str, $start, $lenght=NULL, $encoding=NULL) {
	if (!$encoding) {
		$encoding = mb_internal_encoding();
	}
	return mb_substr($str, $start, $lenght, $encoding);
}