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TraceableEventDispatcher::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/Debug/TraceableEventDispatcher.html#method_hasListeners

doc_Symfony

2016-10-28 06:34:57

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