(PECL sync >= 1.0.0)
SyncEvent::fire — Fires/sets the event
public SyncEvent::fire ( ) : bool
Fires/sets a SyncEvent object. Lets multiple threads through that are waiting if the event object was created with a manual value of TRUE.
This function has no parameters.
A boolean of TRUE if the event was fired, FALSE otherwise.
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https://www.php.net/manual/en/syncevent.fire.php