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本文實(shí)例講述了thinkPHP實(shí)現(xiàn)的聯(lián)動(dòng)菜單功能。分享給大家供大家參考，具體如下：

聯(lián)動(dòng)菜單，首先給你看看前端是怎么寫的：

<div id="newCat">
  <div class="all_type" id="allGoogsCat">所有商品分類</div>
  <div class="spfl-warp <?php if(CONTROLLER_NAME != 'Index' || ACTION_NAME != 'index'){echo 'hide';} ?> ">
    <div class="index-spfl-left" id="divCatList">
      <ul>
        <foreach name="category_menu" key="one" item="v">
        <li class="li{$one+1}">
          <span><em></em>
            <a  rel="external nofollow" >{$v.category_name}</a>
          </span>
          <div class="div none">
            <foreach name="v['childs']" key="two" item="v2">
              <dl>
                <dt>
                  <a  rel="external nofollow" >{$v2.category_name}</a>
                </dt>
                <dd class="fl">
                  <foreach name="v2['childs']" item="v3">
                    <a  rel="external nofollow" >
                      {$v3.category_name}
                    </a>
                  </foreach>
                </dd>
                <div class="cl"></div>
              </dl>
            </foreach>
          </div>
        </li>
      </foreach>
    </ul>
  </div>
  </div>
</div>
<script type="text/javascript">
<?php if(CONTROLLER_NAME != 'Index' || ACTION_NAME != 'index'){ ?>
  //商品分類鼠標(biāo)滑過(guò)
  function spflHover() {
    $(".index-spfl-left ul li").live("mouseover", function () {
      $(this).addClass("active").siblings().removeClass("active");
      $(".index-spfl-left").find(".div").hide();
      $(this).find(".div").show();
    }).live("mouseout", function () {
      $(this).removeClass("active");
      $(".index-spfl-left").find(".div").hide();
      $(this).find(".div").hide();
    });
    //鼠標(biāo)滑過(guò)分類顯示
    $("#newCat").mouseover(function () {
      $(".spfl-warp").show();
    }).mouseout(function () {
      if ($("#ismain").val() == "1") {
        $(".spfl-warp").show();
      } else {
        $(".spfl-warp").hide();
      }
    })
  }
  spflHover();
<?php } ?>
</script>

看到?jīng)]有，其實(shí)里面的一級(jí)菜單對(duì)應(yīng)二級(jí)菜單都是在同一個(gè)li里面的，li里面的二級(jí)三級(jí)呢，都是放在dl的dt和dd標(biāo)簽里面；

然后現(xiàn)在我們看看取出來(lái)的category_menu,什么樣的數(shù)據(jù)：

Array
(
 [0] => Array
  (
   [category_id] => 84
   [category_name] => 家裝主材
   [parent_id] => 0
   [listorder] => 200
   [display] => 1
   [childs] => Array
    (
     [0] => Array
      (
       [category_id] => 85
       [category_name] => 廚衛(wèi)
       [parent_id] => 84
       [listorder] => 200
       [display] => 1
       [childs] => Array
        (
         [0] => Array
          (
           [category_id] => 99
           [category_name] => 廚盆/水槽
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [1] => Array
          (
           [category_id] => 98
           [category_name] => 衛(wèi)浴配件
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [2] => Array
          (
           [category_id] => 97
           [category_name] => 衛(wèi)浴龍頭
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [3] => Array
          (
           [category_id] => 96
           [category_name] => 龍頭
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [4] => Array
          (
           [category_id] => 95
           [category_name] => 淋浴房
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [5] => Array
          (
           [category_id] => 94
           [category_name] => 智能坐便器
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [6] => Array
          (
           [category_id] => 93
           [category_name] => 浴室柜
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [7] => Array
          (
           [category_id] => 92
           [category_name] => 坐便器
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [8] => Array
          (
           [category_id] => 91
           [category_name] => 浴霸
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [9] => Array
          (
           [category_id] => 90
           [category_name] => 地漏
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [10] => Array
          (
           [category_id] => 89
           [category_name] => 坐便器蓋板
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [11] => Array
          (
           [category_id] => 88
           [category_name] => 洗面盆
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [12] => Array
          (
           [category_id] => 87
           [category_name] => 角閥
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [13] => Array
          (
           [category_id] => 100
           [category_name] => 衛(wèi)浴五金
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [14] => Array
          (
           [category_id] => 101
           [category_name] => 廚房掛件/配件
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [15] => Array
          (
           [category_id] => 86
           [category_name] => 淋浴花灑
           [parent_id] => 85
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
        )
      )
     [1] => Array
      (
       [category_id] => 126
       [category_name] => 墻紙
       [parent_id] => 84
       [listorder] => 200
       [display] => 1
       [childs] => Array
        (
         [0] => Array
          (
           [category_id] => 130
           [category_name] => 3D墻紙
           [parent_id] => 126
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [1] => Array
          (
           [category_id] => 129
           [category_name] => 純紙墻紙
           [parent_id] => 126
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )
         [2] => Array
          (
           [category_id] => 128
           [category_name] => PVC墻紙
           [parent_id] => 126
           [listorder] => 200
           [display] => 1
           [childs] => Array
            (
            )
          )

然后，數(shù)據(jù)表是怎么樣的數(shù)據(jù)呢：

Array
(
  [0] => Array
    (
      [category_id] => 211
      [category_name] => 鞋柜
      [parent_id] => 31
      [listorder] => 200
      [display] => 1
    )
  [1] => Array
    (
      [category_id] => 194
      [category_name] => 相框/照片墻
      [parent_id] => 189
      [listorder] => 200
      [display] => 1
    )
  [2] => Array
    (
      [category_id] => 193
      [category_name] => 簾藝隔斷
      [parent_id] => 189
      [listorder] => 200
      [display] => 1
    )
  [3] => Array
    (
      [category_id] => 192
      [category_name] => 沙發(fā)墊套/椅墊
      [parent_id] => 189
      [listorder] => 200
      [display] => 1
    )
  [4] => Array
    (
      [category_id] => 191
      [category_name] => 地毯地墊
      [parent_id] => 189
      [listorder] => 200
      [display] => 1
    )
  [5] => Array
    (
      [category_id] => 190
      [category_name] => 桌布/罩件
      [parent_id] => 189
      [listorder] => 200
      [display] => 1
    )

數(shù)據(jù)表數(shù)據(jù)是醬紫的；

然后，你能寫出那個(gè)處理數(shù)組的方法嗎，給你原數(shù)據(jù)，然后你用迭代處理成你想要的數(shù)據(jù)，不用太多，6行代碼左右，你OK？

代碼拷貝多了，人也就變傻了，知不知道？？？

//把欄目分組，以多維數(shù)組形式
public function group_category($id = 0)
{
    $list=$this->where('display = 1')->order('listorder asc')->select();
    $tmp = array();
    foreach($list as $v){
      if($v['parent_id'] == $id){
        $v['childs'] = $this->group_category($v['category_id']);
        $tmp[] = $v;
      }
    }
    return $tmp;
}

為什么不把SQL語(yǔ)句放在外面作為參數(shù)傳遞進(jìn)去函數(shù)groud_category函數(shù)呢？這樣就不用老是查數(shù)據(jù)庫(kù)啊。

無(wú)非也就是將父ID為0開(kāi)始查詢，然后對(duì)其子欄目的id在做為父ID進(jìn)行查詢，查詢出屬于其id的子欄目

更多關(guān)于thinkPHP相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《ThinkPHP入門教程》、《thinkPHP模板操作技巧總結(jié)》、《ThinkPHP常用方法總結(jié)》、《codeigniter入門教程》、《CI(CodeIgniter)框架進(jìn)階教程》、《Zend FrameWork框架入門教程》及《PHP模板技術(shù)總結(jié)》。

希望本文所述對(duì)大家基于ThinkPHP框架的PHP程序設(shè)計(jì)有所幫助。