Direct your domain to seperate path using PHP

If you have several domain and have only one virtual space on a server like me, try this:

$site_matrix = array(
"$site1" => "$path1",
"$site2" => "$path2"
);

$def_pg = "$def_path";
$server = $_SERVER["HTTP_HOST"];
$pg = $site_matrix[$server];
if($pg == "") $pg = $def_pg;
header("Location: $pg");