php man page for event_buffer_new

EVENT_BUFFER_NEW(3)							 1						       EVENT_BUFFER_NEW(3)

event_buffer_new - Create new buffered event

SYNOPSIS
       resource event_buffer_new (resource  $stream, mixed  $readcb, mixed  $writecb, mixed  $errorcb, [mixed  $arg])

DESCRIPTION
	Libevent provides an abstraction layer on top of the regular event API. Using buffered event you don't need to deal with the I/O manually,
       instead it provides input and output buffers that get filled and drained automatically.

PARAMETERS
	      o $stream
		- Valid PHP stream resource. Must be castable to file descriptor.

	      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
       event_buffer_new(3) returns new buffered event resource on success or FALSE on error.

PHP Documentation Group 												       EVENT_BUFFER_NEW(3)