php man page for event_buffer_set_callback

EVENT_BUFFER_SET_CALLBACK(3)						 1					      EVENT_BUFFER_SET_CALLBACK(3)

event_buffer_set_callback - Set or reset callbacks for a buffered event

SYNOPSIS
       bool event_buffer_set_callback (resource  $event, mixed	$readcb, mixed	$writecb, mixed  $errorcb, [mixed  $arg])

DESCRIPTION
	Sets or changes existing callbacks for the buffered $event.

PARAMETERS
	      o $event
		- Valid buffered event resource.

	      o $readcb
		- Callback to invoke where there is data to read, or NULL if no callback is desired.

	      o $writecb
		- Callback to invoke where the descriptor is ready for writing, or NULL if no callback is desired.

	      o $errorcb
		- Callback to invoke where there is an error on the descriptor, cannot be NULL.

	      o $arg
		- An argument that will be passed to each of the callbacks (optional).

RETURN VALUES
	Returns TRUE on success or FALSE on failure.

PHP Documentation Group 											      EVENT_BUFFER_SET_CALLBACK(3)