$ip";
if ($hostname == $ip ) { }
else { echo "$hostname
"; };
if ($hostname == $ip) { }
else { $hostip = gethostbyname($hostname); };
if (empty($ip)) { }
else if ($hostip == $ip) { echo "OK
"; }
else if (empty($hostip)) { echo "Missing"; }
else if ($hostname == $hostname) { echo "Bad"; }
else { echo "Bad"; };
?>