| Warning |
This function is EXPERIMENTAL. The behaviour of this function, the name of this function, and anything else documented about this function may change in a future release of PHP without notice. Be warned and use this function at your own risk. |
After the socket socket has been created using socket_create() and bound to a name with socket_bind(), it may be told to listen for incoming connections on socket. A maximum of backlog incoming connections will be queued for processing.
socket_listen() is applicable only to sockets with type SOCK_STREAM or SOCK_SEQPACKET.
Returns zero on success, or a negative error code on failure. This code may be passed to socket_strerror() to get a textual explanation of the error.
See also socket_accept(), socket_bind(), socket_connect(), socket_create(), socket_get_status(), and socket_strerror().