PHP input::is_do示例

 /**
  * 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;
 }