EventDispatcherInterface
interface EventDispatcherInterface
The EventDispatcherInterface is the central point of Symfony's event listener system.
Listeners are registered on the manager and events are dispatched through the manager.
Methods
Adds an event listener that listens on the specified events.
Removes an event listener from the specified events.
Gets the listeners of a specific event or all listeners sorted by descending priority.
Gets the listener priority for a specific event.
Checks whether an event has any registered listeners.
Details
Event
dispatch(string $eventName, Event $event = null)
Dispatches an event to all registered listeners.
addListener(string $eventName, callable $listener, int $priority = 0)
Adds an event listener that listens on the specified events.
addSubscriber(EventSubscriberInterface $subscriber)
Adds an event subscriber.
The subscriber is asked for all the events it is interested in and added as a listener for these events.
removeListener(string $eventName, callable $listener)
Removes an event listener from the specified events.
array
getListeners(string|null $eventName = null)
Gets the listeners of a specific event or all listeners sorted by descending priority.