Stream 函数
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stream_socket_accept

(PHP 5)

stream_socket_accept — Accept a connection on a socket created by stream_socket_server()

说明

resource stream_socket_accept ( resource $server_socket [, float $timeout = ini_get("default_socket_timeout") [, string &$peername ]] )

Accept a connection on a socket previously created by stream_socket_server().

参数

server_socket

The server socket to accept a connection from.

timeout

Override the default socket accept timeout. Time should be given in seconds.

peername

Will be set to the name (address) of the client which connected, if included and available from the selected transport.

Note:

Can also be determined later using stream_socket_get_name().

返回值

Returns a stream to the accepted socket connection 或者在失败时返回 FALSE.

注释

Warning

This function should not be used with UDP server sockets. Instead, use stream_socket_recvfrom() and stream_socket_sendto().

参见

Stream 函数
在线手册：中文 英文
PHP手册
PHP手册 - N: Accept a connection on a socket created by stream_socket_server

用户评论:

Andy at txtNation dot com (10-Oct-2011 05:13)

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
                }
            }
        }
    }
?>

fred dot hakeem dot smith at muslimamerica dot bob dot net (02-Jan-2008 08:33)

To whom it may concern, and it may concern you greatly, stream_set_blocking has no effect on stream_socket_accept.
If you want it to return right away, connection or not, use 0 for the timeout parameter.

mickael dot bailly at free dot fr (18-Jul-2006 11:10)

this function, compared to the function socket_accept, got an extra argument "timeout".
To make this function wait indefinitelly to incoming connections, just as in socket_accept, set timeout to -1. It works for me with PHP 5.0.4.

leleu256NOSPAM at hotmail dot com (02-Nov-2004 01:58)

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);
  }
}
?>