Integrating Wordpress blog and forum into a Yii app


I’ve got a website about Sony Ericsson mobile phones. It has a phpBB forum, a Wordpress blog and a self-written main site. I want to totally rebuild it with Yii, but I want to keep Wordpress engine and also keep phpBB (or switch to MyBB). I want a very similar design to the three of them. I was thinking about wrapping them all into a Yii application, so I’d have a forum controller which would include the phpBB forum and a blog controller which would include the Wordpress blog.

Is it possible to do? Or should I just use Yii for the main site and create a similar theme for the forum and blog as well?