cakephp コントローラー

<?php
// app/Controller
class UsersController extends AppController {

/*
 *  http://example.com/users/index
 *  http://example.com/users/
 */
public function index() {}

/*
 *  http://example.com/users/edit/1
 *  http://example.com/users/edit/2
 */
public function edit($id=0) {}

}