public static function getClientIps()
    {
        // Get the list of client IP addresses by first setting the
        // list of trusted proxies.
        // Request::setTrustedProxies(['reverse.proxies.go.here']);
        $clientIps = Request::getClientIps();
        $clientIp  = implode(', ', $clientIps);

        // Also get any addresses in _SERVER["HTTP_X_FORWARDED_FOR"]
        $forwardAddress = isset($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : '';
        if (empty($clientIp)) {
            $clientIp = $forwardAddress;
        } elseif (! empty($forwardAddress)) {
            $clientIp = $clientIp . ',' . $forwardAddress;
        }

        return $clientIp;
    }