List all Action in All Controller

 function allControllerAction(){     
      $controllerClasses = App::objects('controller');  
      foreach($controllerClasses as $controller) {  
           if ($controller != 'App') {  
                App::import('Controller', $controller);  
                $className = $controller . 'Controller';  
                $actions = get_class_methods($className);  
                foreach($actions as $k => $v) {  
                     if ($v{0} == '_') {  
                          unset($actions[$k]);  
                     }  
                }  
                $parentActions = get_class_methods('AppController');  
                $controllers[$controller] = array_diff($actions, $parentActions);  
           }  
      }  
   return $controllers;   
 }  

}