<?

function get_client_ip ()
{
    // Nothing to do without any reliable information
    if (!isset ($_SERVER['REMOTE_ADDR'])) {
        return NULL;
    }

    // Header that is used by the trusted proxy to refer to
    // the original IP
    $proxy_header = "HTTP_X_FORWARDED_FOR";

        // Get the IP address of the client behind trusted proxy
        if (array_key_exists ($proxy_header, $_SERVER)) {

            // Header can contain multiple IP-s of proxies that are passed through.
            // Only the IP added by the last proxy (last IP in the list) can be trusted.
            $client_ip = trim (end (explode (",", $_SERVER[$proxy_header])));

            // Validate just in case
            if (filter_var ($client_ip, FILTER_VALIDATE_IP)) {
                return $client_ip;
            } else {
                // Validation failed - beat the guy who configured the proxy or
                // the guy who created the trusted proxy list?
                // TODO: some error handling to notify about the need of punishment
            }
        }


    // In all other cases, REMOTE_ADDR is the ONLY IP we can trust.
    return $_SERVER['REMOTE_ADDR'];
}

$ip = get_client_ip(); // the IP address to query
$query = @unserialize(file_get_contents('http://ip-api.com/php/'.$ip));
if($query && $query['status'] == 'success') {

    $curr_uri = check_plain(request_uri());
    if ($query['country'] == "United Kingdom" && $curr_uri == "/"){
        header("Location: uk-homepage");
    }
}


function ukredirect_init(){
	get_client_ip();
}