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update : 2015.11.03
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Event::add(PECL libevent >= 0.0.1) Event::add — Makes event pending 설명
public
bool
Event::add
([
double
$timeout
] )Marks event pending. Non-pending event will never occur, and the event callback will never be called. In conjuction with Event::del() an event could be re-scheduled by user at any time. If Event::add() is called on an already pending event, libevent will leave it pending and re-schedule it with the given timeout(if specified). If in this case timeout is not specified, Event::add() has no effect. 인수
반환값
Returns 참고
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