如何为 Manu & Submenu 构建正确的数组结构？

Question

我想创建此菜单。这是一些子菜单的一个例子。

• 绿色 - 漂亮的颜色
• 太阳 - 热色
• 天空 - 自由
  • 免费
  • free2

如何使用最简单的子菜单示例创建此菜单？
我创建了一个数组。这是正确的方式？

$NavMenu = [
       'The Green' => 
            [
              'name' => 'The Green',
              'subname' => 'Nice Color',
              'href' => 'greenlink',
              'title' => 'green is nature',
              'icon' => 'globe',
              'class' => 'green',
              'subnav' => ''
            ],
       'The Sun' => 
            [
              'name' => 'The Sun',
              'subname' => 'hot color',
              'href' => 'yellowlink',
              'title' => 'yellow is sun',
              'icon' => 'sunicon',
              'class' => 'yellow',
              'subnav' => ''
            ],
        'The Sky' => 
            [
              'name' => 'The Sky',
              'subname' => 'freedom',
              'href' => 'bluelink',
              'title' => 'blue is cold',
              'icon' => 'free',
              'class' => 'yellow',
              'subnav' =>  
                              [
                                'name' => 'Free',
                                'href' => 'bluelinkFree',
                                'title' => 'freedom is love',
                                'class' => 'blueFreedom'
                              ],
                              [
                                'name' => 'Free2',
                                'href' => 'bluelinkFree2',
                                'title' => 'freedom is love2',
                                'class' => 'blueFreedom2'
                              ]
            ]
    ];

是正确的方式吗？

期望输出

<ul>
<li>
    <a class="green" href="greenlink" title="green is nature">
     <span icon="globe"></span>The Green - Nice Color</a>
</li>
<li>
    <a class="yellow" href="yellowlink" title="yellow is sun">
     <span icon="sunicon"></span>The Sun - hot color</a>
</li>
<li>
    <a class="blue" href="bluelink" title="blue is cold">
     <span icon="free"></span>The Sky - freedom</a>
     <ul>
         <li>
          <a class="blueFreedom" href="bluelinkFree" title="freedom is love">Free</a>
         </li>
<li>
          <a class="blueFreedom2" href="bluelinkFree2" title="freedom is2 love">Free2</a>
         </li>
     </ul>
</li>
</ul>

Answer 1

您数组'subnav' => 'Free' =的这一部分不是有效的php。

还要注意，要创建的子菜单缺少数组键，例如subname和icon。

您可以使用一个foreach，并检查键subnav键是否包含一个数组：

echo "<ul>";
foreach ($NavMenu as $navItem) {
    echo sprintf(
        '<li><a class="%s" href="%s" title="%s"><span icon="%s"></span>%s - %s</a>',
        $navItem["class"],
        $navItem["href"],
        $navItem["title"],
        $navItem["icon"],
        $navItem["name"],
        $navItem["subname"]
    );
    if (is_array($navItem["subnav"])) {
        $subNavItem = $navItem["subnav"];
        echo sprintf(
            '<ul><li><a class="%s" href="%s" title="%s"><span icon="%s"></span>%s - %s</a></li></ul>',
            $subNavItem["class"],
            $subNavItem["href"],
            $subNavItem["title"],
            $subNavItem["icon"],
            $subNavItem["name"],
            $subNavItem["subname"]
        );
    }
    echo "</li>";
}
echo "</ul>";

请参阅php demo