hoe krijg ik deze code uit een loop?

<?


$subdomain = explode(".",$_SERVER['SERVER_NAME']);
$subdomain = $subdomain[0];
$subdomain = str_replace("../", "", $subdomain);

if($subdomain != "www" AND $subdomain !="1" AND $subdomain != "2" AND $subdomain !="3") {
$doId = f(q("SELECT id FROM dt_members WHERE login = '$subdomain'"));
// print "ID". $doId[id];
// print $subdomain[0];

if($doId['id']) {
$doId2 = f(q("SELECT id FROM dt_profile WHERE member_id = '$doId[id]'"));
//header("Location: http://domain.tk?page=view_profile&id={$doId2['id']}";);
// loopt
header("Location: " . "<? $subdomain?>" . "domain.tk?page=view_profile&id={$doId2['id']}");
}
}

?>