private static function get_records_for_name($last_name)
 {
     // grab all registered users from db
     require_once __DIR__ . '/Database.php';
     $result_set = \ZwsContactsDatabase\Database::getAllRecordsWhere('id', array('field' => 'last_name', 'value' => $last_name));
     // display the results
     require_once __DIR__ . '/ZwsPaginator.php';
     $page_size = 5;
     return true ? \ZwsContactsDatabase\ZwsPaginator::paginate($result_set, $page_size, $last_name) : false;
 }