Portforwarding check works locally but not on server

[blacblu]

I have this code which works perfectly on my local network using XAMPP (PHP 5.4.7) but when I try to run on my server (PHP 5.2.17) the page just keep loading and doesn't finish. Is it because of the PHP version or something else?

 

<?php
   $host = $_SERVER['REMOTE_ADDR'];
   $port = $_GET['port'];
   $connection = @fsockopen($host, $port);

   if (is_resource($connection))
   {
       echo "Connected";
       fclose($connection);
   } else {
       echo "Error";
   }
?>

[scootstah]

Are you using shared hosting? Shared hosts typically only allow certain outgoing ports.

 

If it is a VPS or something in which you have complete control, check the firewall configs.