Request Life-cycle callbacks
class Controller
CakePHP controllers come fitted with callbacks you can use to insert logic around the request life-cycle:
Controller::beforeFilter()
This function is executed before every action in the controller. It’s a handy place to check for an active
session or inspect user permissions.Note: The beforeFilter() method will be called for missing actions, and scaffolded actions.
Controller::beforeRender()
Called after controller action logic, but before the view is rendered. This callback is not used often,
but may be needed if you are calling render() manually before the end of a given action.
Controller::afterFilter()
Called after every controller action, and after rendering is complete. This is the last controller method
to run.
In addition to controller life-cycle callbacks, Components also provide a similar set of callbacks.