How to import a controller in CakePHP

Suppose we have a controller named pages_controller.php, in which there is a function named index().

Now we are working in an another controller named users_controller.php, and we want to use the index function defined in Pages Controller.

App::import('Controller', 'Pages');
class UsersController extends AppController {
var $Pages;
function beforeFilter() {
$this->Pages =& new PagesController; /*Loads the class*/
$this->Pages->constructClasses(); /*Loads the model associations, components, etc. of the Pages controller*/
}
function index() {
$this->Pages->index();
}
}