jessicaq

You'd almost be better off splitting it up into an array and then checking the length of the last element.
<?php
$Host = gethostbyaddr($_SERVER['REMOTE_ADDR']);
print $Host;
print "<br>";
$ArHost = split("\.",$Host);
$iSizeArr = count($ArHost);
If (strlen(end($ArHost)) < 3) {
#HOST HAS A 2-CHAR TOP LEVEL - IE: COUNTRY CODE
echo "domain name is: " . $ArHost[$iSizeArr-3] . "." . $ArHost[$iSizeArr-2] . "." . $ArHost[$iSizeArr-1] . "\n";
} else {
#HOST IS TYPICAL 3-CHAR TOP LEVEL
echo "domain name is: " . $ArHost[$iSizeArr-2] . "." . $ArHost[$iSizeArr-1] . "\n";
}
?>

Hope this helps.
Jessica.