if (!$o) {
            $o = $defaults;
        } elseif (!is_array($o)) {
            $uacct = $o;
            unset($o);
            $o['uacct'] = $uacct;
            $o['subdomains'] = false;
            $o['universal_analytics'] = true;
            $o['displayTracking'] = false;
            extract($o, EXTR_SKIP);
            $o = compact(array_keys($defaults));
        } else {
            $o = wp_parse_args($o, $defaults);
        }
        update_option('google_analytics', $o);
        return $o;
    }
    # init_options()
    /**
     * admin_menu()
     *
     * @return void
     **/
    function admin_menu()
    {
        add_options_page(__('Google Analytics', 'google-analytics'), __('Google Analytics', 'google-analytics'), 'manage_options', 'google-analytics', array('google_analytics_admin', 'edit_options'));
    }
}
# google_analytics
$google_analytics = google_analytics::get_instance();