"; $lookupHost = $lookupKey . $_GET['find']; } else { $newline = "\n"; $lookupHost = $lookupKey . $argv[1]; } $foundHost = gethostbyname($lookupHost); if ($foundHost == $lookupHost) { echo "{$lookupHost} had no DNS record.{$newline}"; } else { echo "{$lookupHost} = {$foundHost}{$newline}"; } } ?>