socket_create_listen
(PHP 4 >= 4.1.0, PHP 5)
socket_create_listen — Opens a socket on port to accept connections
说明
resource socket_create_listen ( int $port [, int $backlog = 128 ] )socket_create_listen() creates a new socket resource 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.
参数
- port
-
The port on which to listen on all interfaces.
- backlog
-
The backlog parameter defines the maximum length the queue of pending connections may grow to. SOMAXCONN may be passed as backlog parameter, see socket_listen() for more information.
返回值
socket_create_listen() returns a new socket resource 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.
注释
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().
参见
- 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
