Sidebar Per User Role

PMF

Usage: 

Either call the guest sidebar in your theme using :

<?php dynamic_sidebar( 'guest-sidebar' ); ?>

which will be replaced based on the user role.

Or use an existing sidebar you want replaced by adding this in your themes functions.php

add_action('after_theme_setup','replace_sidebar_');

function replace_sidebar_(){

    global $sidebars_per_role;
    $sidebars_per_role->sidebar_to_replace = 'ID-OF-YOUR-Sidebar';
}