stream_socket_accept

    (PHP 5, PHP 7, PHP 8)

    stream_socket_accept — 接受由 stream_socket_server() 创建的套接字连接

    说明

    stream_socket_accept(resource $socket, ?float $timeout = null, string &$peer_name = null): resource|false

    接受由 stream_socket_server() 创建的套接字连接。

    参数

    socket

    需要接受的服务器创建的套接字连接。

    timeout

    覆盖默认的套接字接受的超时时限。输入的时间需以秒为单位。默认情况下，使用 default_socket_timeout 作为超时时限。

    peer_name

    如果已选的传输器存在且有效的已连接客户端，则将该值设置为已连接客户端名称（地址）。

    注意:

    也可以之后通过 stream_socket_get_name() 来确定。

    返回值

    返回接受套接之后的资源流 或者在失败时返回 false。

    更新日志

    版本 说明
    8.0.0 现在 timeout 可以为 null。

    注释

    警告

    该函数不能被用于 UDP 套接字。可以使用 stream_socket_recvfrom() 和 stream_socket_sendto() 来取而代之。

    参见

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    用户贡献的备注 2 notes

    up
    6
    leleu256NOSPAM at hotmail dot com
    20 years ago
    This code could be very helpfull...

    The following code is for the "server". It listen for a message until CTRL-C

    <?php
    while (true)
    {
    // disconnected every 5 seconds...
    receive_message('127.0.0.1','85',5);
    }

    function     receive_message($ipServer,$portNumber,$nbSecondsIdle)
    {
    // creating the socket...
    $socket = stream_socket_server('tcp://'.$ipServer.':'.$portNumber, $errno, $errstr);
    if (!    $socket)
    {
    echo     "$errstr ($errno)<br />\n";
    }
    else
    {
    // while there is connection, i'll receive it... if I didn't receive a message within $nbSecondsIdle seconds, the following function will stop.
    while ($conn = @stream_socket_accept($socket,$nbSecondsIdle))
    {
    $message= fread($conn, 1024);
    echo     'I have received that : '.$message;
    fputs ($conn, "OK\n");
    fclose ($conn);
    }
    fclose($socket);
    }
    }
    ?>

    The following code is for the "client". It send a message, and read the respons...

    <?php

    send_message    ('127.0.0.1','85','Message to send...');

    function     send_message($ipServer,$portServer,$message)
    {
    $fp = stream_socket_client("tcp://$ipServer:$portServer", $errno, $errstr);
    if (!    $fp)
    {
    echo     "ERREUR : $errno - $errstr<br />\n";
    }
    else
    {
    fwrite($fp,"$message\n");
    $response = fread($fp, 4);
    if (    $response != "OK\n")
    {echo     'The command couldn\'t be executed...\ncause :'.$response;}
    else
    {echo     'Execution successfull...';}
    fclose($fp);
    }
    }
    ?>
    up
    5
    Andy at txtNation dot com
    13 years ago
    To check if there's a new connection waiting, without blocking, or (when using non-blocking mode) without notices), you can use stream_accept (as opposed to socket_select).

    <?php

    class GenericClass {

    protected     $resSocket=null;

    function     acceptConnections() {

    # check that we still have a resource

    if(is_resource($this->resSocket)) {

    $arrRead=array($this->resSocket);

    $arrWrite=array();

    /** @warning Passing $arrRead,$arrWrite by reference */
    if(stream_select($arrRead,$arrWrite,$arrWrite,0)) {

    $resConnection=stream_socket_accept($this->resSocket,0);

    # ... other stuff here
    }
    }
    }
    }
    ?>
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