PHP5中文手册·Listens for a connection on a socket -- 追寻梦想＞编程乐园＞PHP 编程

说明

bool socket_listen ( resource $socket [, int $backlog ] )

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 .

socket_listen() is applicable only to sockets of type SOCK_STREAM or SOCK_SEQPACKET.

参数

socket: A valid socket resource created with socket_create().
backlog: 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.

Note: The maximum number passed to the backlog parameter highly depends on the underlying platform. On Linux, it is silently truncated to SOMAXCONN. On win32, if passed SOMAXCONN, the underlying service provider responsible for the socket will set the backlog to a maximum reasonable value. There is no standard provision to find out the actual backlog value on this platform.

返回值

如果成功则返回 TRUE，失败则返回 FALSE。 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.


	PHP5中文手册 socket_last_error socket_read Sockets PHP Manual socket_listen (PHP 4 >= 4.0.7, PHP 5) socket_listen — Listens for a connection on a socket 说明 bool socket_listen ( resource `$socket` [, int `$backlog` ] ) 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` . socket_listen() is applicable only to sockets of type `SOCK_STREAM` or `SOCK_SEQPACKET`. 参数 `socket` A valid socket resource created with socket_create(). `backlog` 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. Note: The maximum number passed to the `backlog` parameter highly depends on the underlying platform. On Linux, it is silently truncated to `SOMAXCONN`. On win32, if passed `SOMAXCONN`, the underlying service provider responsible for the socket will set the backlog to a maximum reasonable value. There is no standard provision to find out the actual backlog value on this platform. 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。 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. 参见 socket_accept() socket_bind() socket_connect() socket_create() socket_strerror() socket_last_error socket_read Sockets PHP Manual

socket_listen

说明

参数

返回值

参见