PHP 7.2.0 Release Candidate 4 Released

event_timer_set

(PECL libevent >= 0.0.2)

event_timer_setPrepare a timer event

说明

bool event_timer_set ( resource $event , callable $callback [, mixed $arg ] )

Prepares the timer event to be used in event_add(). The event is prepared to call the function specified by the callback when the event timeout elapses.

After initializing the event, use event_base_set() to associate the event with its event base.

In case of matching event, these three arguments are passed to the callback function:

fd

Signal number or resource indicating the stream.

events

A flag indicating the event. This will always be EV_TIMEOUT for timer events.

arg

Optional parameter, previously passed to event_timer_set() as arg.

参数

event

Valid event resource.

callback

Callback function to be called when the matching event occurs.

arg

Optional callback parameter.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE

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