int|null getListenerPriority(string $eventName, callable $listener) Gets the listener priority

offsetSet(string $key, mixed $value) ArrayAccess for argument setter.

addListener(string $eventName, callable $listener, int $priority) Adds an event listener that listens

bool hasListeners(string $eventName = null) Checks whether an event has any registered listeners

addSubscriber(

removeSubscriber(

interface EventSubscriberInterface An EventSubscriber knows himself what events he is interested

addListenerService(string $eventName, array $callback, int $priority) Adds a service as event listener

stopPropagation() Stops the propagation of the event to further event listeners. If multiple

Interfaces