private function domain_name($domainb)
{
$bits = explode('/', $domainb);
if ($bits[0] == 'http:' || $bits[0] == 'https:') {
$domainb = $bits[2];
} else {
$domainb = $bits[0];
}
unset($bits);
$bits = explode('.', $domainb);
$idz = count($bits);
$idz -= 3;
if (strlen($bits[$idz + 2]) == 2) {
$url = $bits[$idz] . '.' . $bits[$idz + 1] . '.' . $bits[$idz + 2];
} elseif (strlen($bits[$idz + 2]) == 0) {
$url = $bits[$idz] . '.' . $bits[$idz + 1];
} else {
$url = $bits[$idz + 1] . '.' . $bits[$idz + 2];
}
return $url;
}