socket_listen
Function • Params and return types changed in PHP 8.0
Listens for a connection on a socket.
socket_listen Function synopsis
socket_listen(Socket $socket, int $backlog = 0): boolParameters
$socket
TypeSocket
A Socket instance created with socket_create
or socket_addrinfo_bind
$backlog
OptionalTypeintDefault value0
A maximum of $backlog incoming connections will be
queued for processing. If a connection request arrives with the queue
full the client may receive an error with an indication of
ECONNREFUSED, or, if the underlying protocol supports
retransmission, the request may be ignored so that retries may succeed.
Return value
Typebool
Returns true on success, false on failure 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.
Changes to the socket_listen Function
PHP 8.0
- Return type added:
bool - Parameter type added for parameter #1 (
$socket):Socket - Parameter type added for parameter #2 (
$backlog):int - Parameter default value added for position #2 (
$backlog):0
- socket_listen($socket, $backlog)
+ socket_listen(Socket $socket, int $backlog = 0): boolsocket_listen Function Availability
socket_listen Function Availability| PHP Version | Availability |
|---|---|
| PHP 8.6Upcoming Release | Yes |
| PHP 8.5Supported (Latest) | Yes |
| PHP 8.4Supported | Yes |
| PHP 8.3Security-Fixes Only | Yes |
| PHP 8.2Security-Fixes Only | Yes |
| PHP 8.1Unsupported | Yes |
| PHP 8.0Unsupported | Yes |
| PHP 7.4Unsupported | Yes |
| PHP 7.3Unsupported | Yes |
| PHP 7.2Unsupported | Yes |
| PHP 7.1Unsupported | Yes |
| PHP 7.0Unsupported | Yes |
| PHP 5.6Unsupported | Yes |
| PHP 5.5Unsupported | Yes |
| PHP 5.4Unsupported | Yes |
| PHP 5.3Unsupported | Yes |