public static function get()
    {
        $possibleKeys = [
            'HTTP_X_FORWARDED_FOR',
            'HTTP_X_FORWARDED',
            'HTTP_X_CLUSTER_CLIENT_IP',
            'HTTP_FORWARDED_FOR',
            'HTTP_FORWARDED',
            'HTTP_VIA',
            'HTTP_X_COMING_FROM',
            'HTTP_COMING_FROM',
            'HTTP_X_REAL_IP',
            'REMOTE_ADDR',
        ];

        foreach ($possibleKeys as $key) {
            if ($ip = static::getGlobalValue($key)) {
                return $ip;
            }
        }

        return false;
    }