check_admin_referer('deactivate-plugin_' . $plugin);
deactivate_plugins($plugin);
update_option('recently_activated', array($plugin => time()) + (array)get_option('recently_activated'));
check_admin_referer('deactivate-plugin_' . $plugin);
deactivate_plugins($plugin);
update_option('recently_activated', array($plugin => time()) + (array)get_option('recently_activated'));