sockets - Using PHP broadcast to detect Server IP address -

i want article: broadcast detect server ip address

and transfer php, possible?

the reason want send broadcast socket server, , server return message can determine message want or not detect true ip of message sender.

the code like:

<?php error_reporting(e_all);  $address = "255.255.255.255"; $port = 10000;  /* create udp socket. */ $socket = socket_create(af_inet, sock_stream, sol_tcp); if ($socket === false) {     echo "socket_create() failed: reason: " . socket_strerror(socket_last_error()) . "<br/>"; } else {     echo "socket created.<br/>"; }  echo "attempting connect '$address' on port '$port'..."."<br/>"; $result = socket_connect($socket, $address, $port);  if ($result === false) {     echo "socket_connect() failed.\nreason: ($result) " . socket_strerror(socket_last_error($socket)) . "<br/>"; } else {     echo "successfully connected $address."."<br/>"; }   $i="themessage"; echo "sending $i server."."<br/>"; socket_write($socket, $i, strlen($i));  $input = socket_read($socket, 512); echo "response server is: $input"."<br/>"; $ip=""; if($input=="i want")        $ip=socket_send_from_the_ip;   // psuedocode   echo "closing socket..."; socket_close($socket); ?> 

or direction of question wrong? think should use httprequest?

any answer appreciated.