原文地址：http://blog.sina.com.cn/s/blog_664c9f650100yqkn.html

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;

读取cookie:

$cookie = Yii::app()->request->getCookies();

echo $cookie['mycookie']->value;

销毁cookie:

$cookie = Yii::app()->request->getCookies();

unset($cookie[$name]);