Function for list all Controllers and Methods for CakePHP 2.x

AppController.php

<?php
	App::uses('Controller', 'Controller');

	class AppController extends Controller {
		protected function get_controllers () {
			$controllers = null;

			$app_controller = get_class_methods('AppController');
			$controller_classes = App::objects('controller');
			foreach ($controller_classes as $controller_class) {
				if ($controller_class != 'AppController') {
					App::uses($controller_class, 'Controller');
					if (class_exists($controller_class)) {
						$controllers[$controller_class] = array_diff(get_class_methods($controller_class), $app_controller);
					}
				}
			}

			return $controllers;
		}
	}