get actions from controller in cakephp

public function _getControllerActions($controller)
    {
        $controller = explode('/', $controller);
        $appController = (count($controller) > 1? $controller[0] . 'AppController': 'AppController');
        $plugin        = (count($controller) > 1? $controller[0] . '.': '');
        $controller    = (count($controller) > 1? $controller[1]: $controller[0]);

        App::uses($controller . 'Controller', $plugin . 'Controller');
        App::uses($appController, $plugin . 'Controller');

            $methods        = get_class_methods($controller . 'Controller');
        $defaultMethods = get_class_methods($appController);

        if ($methods == null) {
            return array();
        }

        if (is_array($defaultMethods)) {
            $methods = array_diff($methods, $defaultMethods);
        }

            foreach ($methods as $k => $v) {
                    if ($v{0} == '_') {
                        unset($methods[$k]);
                    }
            }

        return array_values($methods);
    }