也许你可以尝试调试困难：
更改消息是这样的：

Maybe you can try to debug harder: change messages to something like this:

if(Yii::app()->user->isGuest) {
    print("Not logged");
} else {
    print_r(Yii::app()->user);
    print("Welcome ".Yii::app()->user->name);
    print("Your id is ".Yii::app()->user->id);

}

而在你的config / main.php文件检查会话变量

And check session variable in your config/main.php file

...
    'session' => array(
        'autoStart'=>true,
    ),
...