stream_socket_accept

(PHP 5, PHP 7, PHP 8)

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

Description

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

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

Parameters

socket: The server socket to accept a connection from.
timeout: Override the default socket accept timeout. Time should be given in seconds. By default, default_socket_timeout is used.
peer_name: 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().

Return Values

Returns a stream to the accepted socket connection or false on failure.

Changelog

Version	Description
8.0.0	`timeout` is now nullable.

Notes

Warning

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

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User Contributed Notes 2 notes

down

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);
  }
}
?>