stream_socket_accept

This code could be very helpfull...The following code is for the "server". It listen for a message until CTRL-C<?phpwhile (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...<?phpsend_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);  }}?>

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                }            }        }    }?>