function amr_users_clear_all_public_csv($except)
{
    // array of user list numbers
    $csv_path = amr_users_get_csv_path();
    //$csv_files = glob($csv_path.'/user_list_*.csv'); 20140722
    //$txt_files = glob($csv_path.'/user_list_*.txt');
    foreach ($except as $exception => $public) {
        if (!$public) {
            // then there should be no files
            $file = $csv_path . '/user_list_' . $exception . '.csv';
            if (file_exists($file)) {
                unlink($file);
            }
            $file = $csv_path . '/user_list_' . $exception . '.txt';
            if (file_exists($file)) {
                unlink($file);
            }
        }
    }
}
function amr_users_clear_all_public_csv($except)
{
    // array of user list numbers
    $csv_path = amr_users_get_csv_path();
    $csv_files = glob($csv_path . '/user_list_*.csv');
    foreach ($except as $exception => $public) {
        if ($public) {
            $except[$exception] = $csv_path . '/user_list_' . $exception . '.csv';
        } else {
            unset($except[$exception]);
        }
    }
    if (!empty($csv_files)) {
        foreach ($csv_files as $file) {
            if (!in_array($file, $except)) {
                unlink($file);
            }
        }
    }
}