how to get url in yii?

Actually i have a url: www.example.com/test

The name "test" consider as id in yii. so that i declare the following line in my config/main.php


'<id>'=>'/site/test/',

Now i need the name of test and then i redirect the page which is in "site/test/test1/testing.php".

I tried in my sitecontroller,


        if (isset($_GET['id']))

        {

        	 $ptype = $_GET['id'];


        	switch ($ptype) {

 			case 'test':

 				$this->renderPartial('test/test1/testing');

 			break;

 			default:

 			   }	


        }

But its not working. its only redirect to my index page.

I don’t know how is get the name of “test”, which is in my url?

Anyone plz?