<?php
    public function get_users($default_fields = null){
    global $wpdb;



    $this->build_query($default_fields);
    $results =  $wpdb->get_results( $this->query );

    $total = $wpdb->get_var( 'SELECT FOUND_ROWS()' );
    $users = $this->db_rows_to_objects($results);



    $all_users = count_users();
    return array('users'=>$users, 'total'=> $total, 'alltotal'=>$all_users['total_users']);

}

$users = array();
foreach ($results as $user)
  if (!user_can( $user->ID, 'manage_options' ))
    $users[] = $user;