Thank you Antonio.1. I have tried PDO::FETCH_OBJ, it returns an stdClass Object. And it works
2. I tried $model['title'] with PDO::FETCH_CLASS , it won't work, since $model is a Page AR object.
What I want to get is a Page AR object with correct properties using DAO(I know how to do the same thing using AR instead of DAO). Since Larry mentioned DAO has "the ability to fetch into specific object types". And I really want to make it work ,but did not get the right answer .
Again, thank you!