PHP Manual: Prepare a timer event

Description

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.

Parameters

event: Valid event resource.
callback: Callback function to be called when the matching event occurs.
arg: Optional callback parameter.

Return Values

Returns TRUE on success or FALSE on failure.