function show_loggedin_function( $atts ) {
global $current_user, $user_login;
get_currentuserinfo();
add_filter('widget_text', 'do_shortcode');
if ($user_login)
return '<div class="mw-logged-in-info">Hallo ' . $current_user->display_name . ' <br><a href="https://vhe-shop2.wp8-demo.de/mein-konto/">Mein Konto</a> </div>';
else
return 'Sie haben noch kein Konto? <a href="/login/">Login / Registrieren</a>';
}
add_shortcode( 'show_loggedin_as', 'show_loggedin_function' );