<?php 
$ip = '000.000.000.000'; 
$port = '80'; 
if (! $sock = @fsockopen($ip, $port, $num, $error, 5)) 
echo '<strong><font color="#FF0000">Offline</font></strong>'; 
else{ 
echo '<strong><font color="#00CC00">Online</font></strong>'; 
fclose($sock); 
} 
?>