Socket Functions
PHP Manual

socket_set_block

Sets blocking mode on a socket resource

Description

bool socket_set_block ( resource $socket )

The socket_set_block function removes the O_NONBLOCK flag on the socket specified by the socket parameter.

When an operation (e.g. receive, send, connect, accept, ...) is performed on a blocking socket, the script will pause its execution until it receives a signal or it can perform the operation.

Parameters

socket

A valid socket resource created with socket_create or socket_accept.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 socket_set_block example

<?php
$socket = socket_create_listen(1223);
socket_set_block($socket);

socket_accept($socket);
?>

This example creates a listening socket on all interfaces on port 1223 and sets the socket to O_BLOCK mode. socket_accept will hang until there is a connection to accept.

See Also

  • socket_set_nonblock
  • socket_set_option