Method level

/**
 * Displays a list of the available access view levels
 *
 * @param   string  $name      The form field name.
 * @param   string  $selected  The name of the selected section.
 * @param   string  $attribs   Additional attributes to add to the select field.
 * @param   mixed   $params    True to add "All Sections" option or an array of options
 * @param   mixed   $id        The form field id or false if not used
 *
 * @return  string  The required HTML for the SELECT tag.
 *
 * @see    \Joomla\CMS\Form\Field\AccesslevelField
 * @since  1.6
 */
public static function level($name, $selected, $attribs = '', $params = true, $id = false)
{
    $db = Factory::getDbo();
    $query = $db->getQuery(true)->select([$db->quoteName('a.id', 'value'), $db->quoteName('a.title', 'text')])->from($db->quoteName('#__viewlevels', 'a'))->group([$db->quoteName('a.id'), $db->quoteName('a.title'), $db->quoteName('a.ordering')])->order([$db->quoteName('a.ordering') . ' ASC', $db->quoteName('a.title') . ' ASC']);
    // Get the options.
    $db->setQuery($query);
    $options = $db->loadObjectList();
    // If params is an array, push these options to the array
    if (is_array($params)) {
        $options = array_merge($params, $options);
    } elseif ($params) {
        array_unshift($options, HTMLHelper::_('select.option', '', Text::_('JOPTION_ACCESS_SHOW_ALL_LEVELS')));
    }
    return HTMLHelper::_('select.genericlist', $options, $name, array('list.attr' => $attribs, 'list.select' => $selected, 'id' => $id));
}