Shuts down a socket for receiving, sending, or both socket_set_option socket_strerror Socket Functions PHP Manual socket_shutdown (PHP 4 >= 4.0.7, PHP 5)socket_shutdown — Shuts down a socket for receiving, sending, or both Description bool socket_shutdown ( resource $socket [, int $how ] ) The socket_shutdown() function allows you to stop incoming, outgoing or all data (the default) from being sent through the socket Parameters socket A valid socket resource created with socket_create(). 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. socket_set_option socket_strerror Socket Functions PHP Manual