php man page for socket_shutdown

SOCKET_SHUTDOWN(3)							 1							SOCKET_SHUTDOWN(3)

socket_shutdown - Shuts down a socket for receiving, sending, or both

SYNOPSIS
       bool socket_shutdown (resource  $socket, [int  $how = 2])

DESCRIPTION
	The socket_shutdown(3) function allows you to stop incoming, outgoing or all data (the default) from being sent through the $socket

PARAMETERS
	      o $socket
		- A valid socket resource created with socket_create(3).

	      o $how
		- The value of $how can be one of the following:

	      possible values for $how

	      +--+--------------------------------------+
	      |  |					|
	      |0 |					|
	      |  |					|
	      |  |	  Shutdown socket reading	|
	      |  |					|
	      |  |					|
	      |1 |					|
	      |  |					|
	      |  |	  Shutdown socket writing	|
	      |  |					|
	      |  |					|
	      |2 |					|
	      |  |					|
	      |  |  Shutdown socket reading and writing |
	      |  |					|
	      +--+--------------------------------------+
RETURN VALUES
	Returns TRUE on success or FALSE on failure.

PHP Documentation Group 													SOCKET_SHUTDOWN(3)