Users: List A to Z, for Users

by

There’s the WP_User_Query for that:

/**
 * List all Users
 * Use as: Template Tag
 * 
 * @uses WP_User_Query
 * @return (array) List of user objects
 */
wpse35713_get_users_list()
{
    $query = new WP_User_Query( array(
         'order'    => 'ASC'
        ,'orderby'  => 'login'
    ) );
    $users = $query->get_results();

    $html  = "<ul><li>";
    foreach ( $users as $user )
    {
        $html .= "</li><li>{$user}";
    }
    $html .= "</li><ul>";

    return $html;
}