yii 获取系统级请求参数的常用方法

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->isPostRequest
2、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]);