Login Register

ImmutableEventDispatcher::hasListeners()

bool hasListeners(string $eventName = null)

Checks whether an event has any registered listeners.

Parameters

string

$eventName

The name of the event

Return Value

bool	true if the specified event has any listeners, false otherwise

Links:

http://api.symfony.com/master/Symfony/Component/EventDispatcher/ImmutableEventDispatcher.html#method_hasListeners

doc_Symfony

2016-10-28 06:20:59

Comments

Leave a Comment

Please login to continue.

Popular Articles

ImmutableEventDispatcher class ImmutableEventDispatcher implements EventDispatcherInterface A read-only proxy for an event dispatcher. Methods __construct(EventDispatc

ImmutableEventDispatcher::getListeners() array getListeners(string $eventName = null) Gets the listeners of a specific event or all listeners sorted by descending priority.

ImmutableEventDispatcher::getListenerPriority() int|null getListenerPriority(string $eventName, callable $listener) Gets the listener priority for a specific event. Returns null if t

ImmutableEventDispatcher::removeSubscriber() removeSubscriber(EventSubscriberInterface $subscriber) Removes an event subscriber. Parameters EventSubscriberInterface $subscriber The

ImmutableEventDispatcher::dispatch() Event dispatch(string $eventName, Event $event = null) Dispatches an event to all registered listeners. Parameters string $eventNam