(PECL event >= 1.2.6-beta)
Event::free — Make event non-pending and free resources allocated for this event
Removes event from the list of events monitored by libevent, and free resources allocated for the event.
The Event::free() method currently doesn't destruct the object itself. To destruct the object completely call unset(), or assign null.
null
この関数にはパラメータはありません。
値を返しません。