我正在开发一个具有 2 级(类别和子类别)菜单的 magento 网站,我想添加第 3 级,但我不知道如何让它工作,我需要帮助。
这是我用来获得第 1 和第 2 类别级别的代码,我怎样才能获得第 3 级别?
<div class="left_content">
 <div class="menu">
    <?php $_helper = Mage::helper('catalog/category') ?>
    <?php $_categories = $_helper->getStoreCategories() ?>
    <?php $currentCategory = Mage::registry('current_category') ?>
    <?php if (count($_categories) > 0): ?>
            <ul id="menu">
            <?php foreach($_categories as $_category): ?>
                    <li class="sub">
                    <a href="<?php echo $_helper->getCategoryUrl($_category) ?>"><?php echo $_category->getName() ?></a>
                    <?php $_category = Mage::getModel('catalog/category')->load($_category->getId()) ?>
                    <?php $_subcategories = $_category->getChildrenCategories() ?>
                    <?php if (count($_subcategories) > 0): ?>
                        <ul>
                        <?php foreach($_subcategories as $_subcategory): ?>
                            <li>
                                <a href="<?php echo $_helper->getCategoryUrl($_subcategory) ?>">
                                <?php echo $_subcategory->getName() ?>
                                </a>
                            </li>
                        <?php endforeach; ?>
                        </ul>
                    <?php endif; ?>
                    </li>
             <?php endforeach; ?>
            </ul>
    <?php endif; ?>
    </div>
</div>