CWikiUtils::htmlspecialcharsback

static function htmlspecialcharsback($str, $end = true)
{
	$str = rawurldecode($str);
	while(mb_strpos($str, '&') !== false)
		$str = self::htmlspecialchars_decode($str);
	if($end)
		$str = self::htmlspecialchars_decode($str);
	return  $str;
}