dedecms三级菜单

// 示例代码：检查菜单配置文件
// 假设菜单配置文件为 menu.php
<?php
$menu = array(
    '首页' => array(
        '产品展示' => array(
            '产品A' => '',
            '产品B' => '',
        ),
        '新闻动态' => array(
            '行业新闻' => '',
            '公司新闻' => '',
        ),
    ),
    '关于我们' => array(
        '公司简介' => '',
        '联系方式' => '',
    ),
);
?>

<!-- 示例代码：HTML结构 -->
<ul>
    <?php foreach ($menu as $key => $value): ?>
        <li>
            <?php echo $key; ?>
            <?php if (!empty($value)): ?>
                <ul>
                    <?php foreach ($value as $subKey => $subValue): ?>
                        <li>
                            <?php echo $subKey; ?>
                            <?php if (!empty($subValue)): ?>
                                <ul>
                                    <?php foreach ($subValue as $subSubKey => $subSubValue): ?>
                                        <li><?php echo $subSubKey; ?></li>
                                    <?php endforeach; ?>
                                </ul>
                            <?php endif; ?>
                        </li>
                    <?php endforeach; ?>
                </ul>
            <?php endif; ?>
        </li>
    <?php endforeach; ?>
</ul>

// 示例代码：JavaScript事件绑定
document.addEventListener('DOMContentLoaded', function() {
    var menuItems = document.querySelectorAll('ul > li');
    menuItems.forEach(function(item) {
        item.addEventListener('click', function(event) {
            event.stopPropagation();
            var subMenu = this.querySelector('ul');
            if (subMenu) {
                subMenu.style.display = subMenu.style.display === 'block' ? 'none' : 'block';
            }
        });
    });
});