Socket Help

[Pro.Luv]

Hi,

 

I read online documentation but I stil can't get this right I need to create a PHP page that will send data to another PHP page using sockets so far I got this:

 

client.php

function ping($host) {
    $package = "\x08\x00\x19\x2f\x00\x00\x00\x00\x70\x69\x6e\x67";

    /* create the socket, the last '1' denotes ICMP */   
    $socket = socket_create(AF_INET, SOCK_RAW, 1);
   
    /* set socket receive timeout to 1 second */
    socket_set_option($socket, SOL_SOCKET, SO_RCVTIMEO, array("sec" => 1, "usec" => 0));
   
    /* connect to socket */
    socket_connect($socket, $host, null);
   
    /* record start time */
    list($start_usec, $start_sec) = explode(" ", microtime());
    $start_time = ((float) $start_usec + (float) $start_sec);
   
    socket_send($socket, $package, strlen($package), 0);
   
    if(@socket_read($socket, 255)) {
        list($end_usec, $end_sec) = explode(" ", microtime());
        $end_time = ((float) $end_usec + (float) $end_sec);
   
        $total_time = $end_time - $start_time;
        $great = "Working !!";
        
        return $total_time." - ".$great;
        
    } else {
        return false;
    }
   
    socket_close($socket);
}

  ping("127.0.0.1");

 

when I use the function it passes back to the same page I need it to send to this page

 

server.php

    error_reporting(E_ALL | E_STRICT);
    
    $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);
    socket_bind($socket, '127.0.0.1', 1223);
    
    $from = "127.0.0.1";
    $port = 80;
    socket_recvfrom($socket, $buf, 12, 0, $from, $port);
    
    echo "Received $buf from remote address $from and remote port $port" . PHP_EOL;
    

 

I really need help with this.

 

Thanks

 

 

[Zyx]

Your server code is completely wrong. The socket you have created there is not used to communicate with the client, but to listen for the incoming connections. You need two more functions: socket_listen() and socket_accept(). Moreover, the server must be running all the time.

 

When socket_accept() accepts a connection, it creates a new socket to talk to the connected client. As you finish the connection processing, you close it and get back to listening on the main socket. This will be something like that:

 

$socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
socket_bind($socket,'127.0.0.1',$port);
socket_listen($socket);

while(true)
{
   if(is_resource($newSocket = socket_accept($socket)))
   {
      // do something with $newSocket
      socket_close($newSocket);
   }
}
socket_close($socket);

[Pro.Luv]

Thanks alot for the reply, the client.php is right ? is there anything I need to add in there so that I can send data to the server.php ?

 

Really appreciate your help.

 

My server.php now is:

 

    $socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
    socket_bind($socket,'127.0.0.1', $port);
    socket_listen($socket);
    
    while(true)
    {
       if(is_resource($newSocket = socket_accept($socket)))
       {
          // do something with $newSocket
          echo $newSocket;
          socket_close($newSocket);
       }
    }
    socket_close($socket);

[Zyx]

The client seems to be all right.

 

In the server code, you should still use socket_recvfrom to receive the data from the client.