EventSubscriberInterface

interface EventSubscriberInterface

An EventSubscriber knows himself what events he is interested in.

If an EventSubscriber is added to an EventDispatcherInterface, the manager invokes {@link getSubscribedEvents} and registers the subscriber as a listener for all returned events.

Methods

static array

getSubscribedEvents()

Returns an array of event names this subscriber wants to listen to.

Details

static array getSubscribedEvents()

Returns an array of event names this subscriber wants to listen to.

The array keys are event names and the value can be:

The method name to call (priority defaults to 0)
An array composed of the method name to call and the priority
An array of arrays composed of the method names to call and respective priorities, or 0 if unset

For instance:

array('eventName' => 'methodName')
array('eventName' => array('methodName', $priority))
array('eventName' => array(array('methodName1', $priority), array('methodName2')))

Return Value

array

The event names to listen to

© 2004–2017 Fabien Potencier
Licensed under the MIT License.
http://api.symfony.com/3.3/Symfony/Component/EventDispatcher/EventSubscriberInterface.html