问opencart在菜单中包含第3个子类别

EN

$data['categories'] = array();

    $categories = $this->model_catalog_category->getCategories(0);

    foreach ($categories as $category) {

        if ($category['top']) {
            // Level 2
            $children_data = array();

            $children = $this->model_catalog_category->getCategories($category['category_id']);

            foreach ($children as $child) {

                // Level 3 sultan
                $children_data_3 = array();

                $children_3 = $this->model_catalog_category->getCategories($child['category_id']);

                foreach ($children_3 as $child_3) {

                    $filter_data_3 = array(
                        'filter_category_id'  => $child_3['category_id'],
                        'filter_sub_category' => true
                    );

                    $children_data_3[] = array(
                        'name'  => $child_3['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data_3) . ')' : ''),
                        'href'  => $this->url->link('product/category', 'path=' . $child['category_id'] . '_' . $child_3['category_id'])
                    );
                }
                //end of level 3


                $filter_data = array(
                    'filter_category_id'  => $child['category_id'],
                    'filter_sub_category' => true
                );

                $children_data[] = array(
                    'name'  => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data) . ')' : ''),
                    'href'  => $this->url->link('product/category', 'path=' . $category['category_id'] . '_' . $child['category_id']),
                    'grand_childs' => $children_data_3

                );
            }

            // Level 1
            $data['categories'][] = array(
                'name'     => $category['name'],
                'children' => $children_data,
                'column'   => $category['column'] ? $category['column'] : 1,
                'href'     => $this->url->link('product/category', 'path=' . $category['category_id'])
            );
        }

    }

  <ul class="nav navbar-nav">


    <?php foreach ($categories as $category) { ?>
    <?php if ($category['children']) { ?>


    <li class="dropdown">
     <a href="<?php echo $category['href']; ?>" class="dropdown-toggle" data-toggle="dropdown"><?php echo $category['name']; ?></a>

      <div class="dropdown-menu">
        <div class="dropdown-inner">
          <?php foreach (array_chunk($category['children'], ceil(count($category['children']) / $category['column'])) as $children) { ?>
          <ul class="nav">
            <?php foreach ($children as $child) { ?>

              <li class="dropdown-submenu" >
              <a href="<?php echo $child['href']; ?>" class="dropdown-toggle" data-toggle="dropdown"><?php echo $child['name']; ?></a>

               <?php if($child['grand_childs']){
                echo '<ul class="dropdown-menu sub-menu">';
              foreach($child['grand_childs'] as $grand_child){ ?>
                        <li>
                          <a href="<?php echo $grand_child['href']; ?>" ><?php echo $grand_child['name']; ?></a>
                        </li>
            <?php }
                echo '</ul>';
            }
            ?>
            </li>


            <?php } ?>

          </ul>
          <?php } ?>

        </div>
        <a href="<?php echo $category['href']; ?>" class="see-all"><?php echo $text_all; ?> <?php echo $category['name']; ?></a> </div>
    </li>
    <?php } else { ?>
    <li><a href="<?php echo $category['href']; ?>"><?php echo $category['name']; ?></a></li>
    <?php } ?>
    <?php } ?>

  </ul>

 $sec_children_data = array();
                $sec_children = $this->model_catalog_category->getCategories($child['category_id']);

                foreach ($sec_children as $sec_child) {
                    $sec_children_data[] = array(
                        'name'  => $sec_child['name'] . ($this->config->get('config_product_count') ? '' : ''),
                        'href'  => $this->url->link('product/category', 'path=' . $child['category_id'] . '_' . $sec_child['category_id'])
                    );

                }

?php if (isset($category['children'][$i]['level3'])) {  
          $level3menus = $category['children'][$i]['level3'];
          ?>
          <ul class="level3">
          <?php
                foreach( $level3menus as $level3menu) {
          ?>
                <li><a href="<?php echo $level3menu['href']; ?>" class=""><?php echo $level3menu['name'];?></a></li>
          <?php } ?>