socket_create_listen
(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)
socket_create_listen — Opens a socket on port to accept connections
Description
socket_create_listen() creates a new Socket instance of
type AF_INET listening on all
local interfaces on the given port waiting for new connections.
This function is meant to ease the task of creating a new socket which only listens to accept new connections.
Parameters
-
port -
The port on which to listen on all interfaces.
-
backlog -
The
backlogparameter defines the maximum length the queue of pending connections may grow to.SOMAXCONNmay be passed asbacklogparameter, see socket_listen() for more information.
Return Values
socket_create_listen() returns a new Socket instance
on success or false on error. The error code can be retrieved with
socket_last_error(). This code may be passed to
socket_strerror() to get a textual explanation of the
error.
Changelog
| Version | Description |
|---|---|
| 8.0.0 | On success, this function returns a Socket instance now; previously, a resource was returned. |
Notes
Note:
If you want to create a socket which only listens on a certain interface you need to use socket_create(), socket_bind() and socket_listen().
See Also
- socket_create() - Create a socket (endpoint for communication)
- socket_create_pair() - Creates a pair of indistinguishable sockets and stores them in an array
- socket_bind() - Binds a name to a socket
- socket_listen() - Listens for a connection on a socket
- socket_last_error() - Returns the last error on the socket
- socket_strerror() - Return a string describing a socket error
