Example of using the User List filter in the Favorites WordPress plugin

favorites-user-list-filter.php

add_filter('simplefavorites_user_list', 'filter_favorites_user_list', 10, 3);
function filter_favorites_user_list($output, $users, $anonymous_count)
{
	$output = '<ul>';
	foreach($users as $user){
		$output .= '<li><a href="' . site_url() . '/members/' . $user->user_login . '">' . $user->display_name . '</a></li>';
	}
	$output .= '</ul>';
	$output .= '(+' . $anonymous_count . ' Anonymous Users)';
	return $output;
}