title: Yii - Extending Controller or CController?
body: <p>I need to create a class where we should have same methods shared with all my controllers, or almost all anyway.</p>
  
  <p>So, I was looking for extending controller, but THEN, I notice that <code>Controller Class</code> already extends another class <code>CController</code>.</p>
  
  <p>I'm confused. </p>
  
  <p>Should we create our own class and <strong>extend</strong> <code>CController</code>, or <strong>extend</strong> <code>Controller</code>, or <strong>USE</strong> <code>Controller</code> class anyway ?</p>