1、GET/POST 1.1、获取GET/POST过来的数据 Yii::app()->request->getParam(‘id‘); 1.2、判断数据提交方式    Yii::app()->request->isPostRequest2、session/cookie 2.1、session常用操作 $_SESSION 等价于 Yii::app()->session; 2.1.1、写入session //启动session$session=new CHttpSession;$session->open();    Yii::app()->session[‘key‘] = ‘value‘ 2.1.2、读取session    Yii::app()->session[‘key‘] 2.1.3、获取session的ID    Yii::app()->session->sessionID 2.1.4、销毁session    //移去所有session变量Yii::app()->session->clear();//移去存储在服务器端的数据Yii::app()->session->destroy(); 2.1.5、session高级用法    $session = Yii::app()->session;$session[‘key‘] = ‘value‘;var_dump($session[‘key‘]); 2.2 cookie 2.2.1 设置cookie    $cookie = new CHttpCookie(‘mycookie’,‘this is my cookie’);$cookie->expire = time()+60*60*24*30;  //有限期30天Yii::app()->request->cookies[‘mycookie‘]=$cookie; 2.2.2 读取cookie $cookie = Yii::app()->request->getCookies();echo $cookie[‘mycookie‘]->value; 2.2.3 销毁cookie    $cookie = Yii::app()->request->getCookies();unset($cookie[$name]);