Joomla主菜单html输出

<?php
  $menu = JFactory::getApplication()->getMenu();
  $active = $menu->getActive();
  $parent_id = $active->tree[1];
  $params = $menu->getParams($parent_id);
  $class_sfx = $params->get('class_sfx');
  $menu_items = $menu->getItems('menutype', 'mainmenu');
  $menu_items = Joomla\Utilities\ArrayHelper::sortObjects($menu_items, 'ordering', 1, true, true);
  $menu_html = '<ul class="nav navbar-nav' . $class_sfx . '">';
  foreach ($menu_items as $item) {
    $menu_html .= '<li class="nav-item' . ($item->id == $active->id ? ' active' : '') . '">';
    $menu_html .= '<a class="nav-link" href="' . $item->link . '">' . $item->title . '</a>';
    $menu_html .= '</li>';
  }
  $menu_html .= '</ul>';
  echo $menu_html;
?>