stream_socket_shutdown

(PHP 5 >= 5.2.1, PHP 7, PHP 8)

stream_socket_shutdown — Shutdown a full-duplex connection

说明

stream_socket_shutdown ( resource $stream , int $mode ) : bool

Shutdowns (partially or not) a full-duplex connection.

Note:

The associated buffer, or buffers, may or may not be emptied.

参数

stream

An open stream (opened with stream_socket_client(), for example)

mode

One of the following constants: STREAM_SHUT_RD (disable further receptions), STREAM_SHUT_WR (disable further transmissions) or STREAM_SHUT_RDWR (disable further receptions and transmissions).

返回值

成功时返回 true， 或者在失败时返回 false。

范例

Example #1 A stream_socket_shutdown() example

<?php

$server = stream_socket_server('tcp://127.0.0.1:1337');
$client = stream_socket_client('tcp://127.0.0.1:1337');

var_dump(fputs($client, "hello"));

stream_socket_shutdown($client, STREAM_SHUT_WR);
var_dump(fputs($client, "hello")); // doesn't work now

?>

以上例程的输出类似于：

int(5)

Notice: fputs(): send of 5 bytes failed with errno=32 Broken pipe in test.php on line 9
int(0)

参见

  • fclose() - 关闭一个已打开的文件指针

User Contributed Notes

Daniel J 06-Jan-2021 07:59
Be wary of using stream_socket_shutdown with a TLS socket. The socket is closed without sending the "close_notify" message required by TLS protocol.

To correctly close a TLS socket, use fclose() instead, which internally calls OpenSSL's SSL_shutdown() function.
jgotti 07-Sep-2012 06:22
Just a note to say that if you encounter problem closing some sockets using fclose in a multi client server, you should really  give this one a try.

Spent a full day trying to resolve this issue using stream_socket_shutdown($clientStream,STREAM_SHUT_RDWR);
finally do the trick.