I am relatively new to the whole MVC / Yii world. I am trying to understand how Yii works and talks with itself and I am slowly having things click the more I do. I have still yet to understand what the $app represents. I have seen it used with users / session interactions as well as a few other things. If there a way someone can explain to me or point out where I can find a good explanation of that?
WOW! Thank you guys for the quick reply. Next day my laptop died and I was without a workstation for the last week . I am going to take a look at the link provided and digest the info you provided Phtamas.