socket_set_block
(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)
socket_set_block — Sets blocking mode on a socket
Description
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.
Return Values
Returns true on success or false on failure.
Changelog
| Version | Description |
|---|---|
| 8.0.0 |
socket is a Socket instance now;
previously, it was a resource.
|
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() - Sets nonblocking mode for file descriptor fd
- socket_set_option() - Sets socket options for the socket
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