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]);