/**
* 递归处理(过滤、整理)所有变量值
*/
public function init()
{
self::$sfInput['post'] =& $_POST;
self::$sfInput['get'] =& $_GET;
self::$sfInput['cookie'] =& $_COOKIE;
self::$sfInput['env'] =& $_ENV;
self::$sfInput['files'] =& $_FILES;
self::$sfInput['request'] =& $_REQUEST;
self::$sfInput['session'] =& $_SESSION;
self::$sfInput['server'] =& $_SERVER;
array_walk_recursive(self::$sfInput, "processVariables");
//产生混合变量
self::$sfInput['mix'] = array();
self::$sfInput['mix'] = array_merge(self::$sfInput['mix'], self::$sfInput['get']);
self::$sfInput['mix'] = array_merge(self::$sfInput['mix'], self::$sfInput['post']);
self::$is_do = true;
}