thinkPHP实现的联动菜单功能详解

ThinkPHP  /  管理员 发布于 8年前   223

本文实例讲述了thinkPHP实现的联动菜单功能。分享给大家供大家参考，具体如下：

联动菜单，首先给你看看前端是怎么写的：

  
所有商品分类  
    
      
                
                      $v['category_id'],'level'=>1))}" rel="external nofollow" >{$v.category_name}                    
                          
                
                  $v2['category_id'],'level'=>2))}" rel="external nofollow" >{$v2.category_name}                
                
                                      $v3['category_id'],'level'=>3))}" rel="external nofollow" >                      {$v3.category_name}                                                      
                
              
                              
          
    

看到没有，其实里面的一级菜单对应二级菜单都是在同一个li里面的，li里面的二级三级呢，都是放在dl的dt和dd标签里面；

然后现在我们看看取出来的category_menu,什么样的数据：

Array( [0] => Array  (   [category_id] => 84   [category_name] => 家装主材   [parent_id] => 0   [listorder] => 200   [display] => 1   [childs] => Array    (     [0] => Array      (       [category_id] => 85       [category_name] => 厨卫       [parent_id] => 84       [listorder] => 200       [display] => 1       [childs] => Array        (         [0] => Array          (           [category_id] => 99           [category_name] => 厨盆/水槽           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [1] => Array          (           [category_id] => 98           [category_name] => 卫浴配件           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [2] => Array          (           [category_id] => 97           [category_name] => 卫浴龙头           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [3] => Array          (           [category_id] => 96           [category_name] => 龙头           [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] => 坐便器盖板           [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] => 角阀           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [13] => Array          (           [category_id] => 100           [category_name] => 卫浴五金           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [14] => Array          (           [category_id] => 101           [category_name] => 厨房挂件/配件           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [15] => Array          (           [category_id] => 86           [category_name] => 淋浴花洒           [parent_id] => 85           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )        )      )     [1] => Array      (       [category_id] => 126       [category_name] => 墙纸       [parent_id] => 84       [listorder] => 200       [display] => 1       [childs] => Array        (         [0] => Array          (           [category_id] => 130           [category_name] => 3D墙纸           [parent_id] => 126           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [1] => Array          (           [category_id] => 129           [category_name] => 纯纸墙纸           [parent_id] => 126           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )         [2] => Array          (           [category_id] => 128           [category_name] => PVC墙纸           [parent_id] => 126           [listorder] => 200           [display] => 1           [childs] => Array            (            )          )

然后，数据表是怎么样的数据呢：

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/照片墙      [parent_id] => 189      [listorder] => 200      [display] => 1    )  [2] => Array    (      [category_id] => 193      [category_name] => 帘艺隔断      [parent_id] => 189      [listorder] => 200      [display] => 1    )  [3] => Array    (      [category_id] => 192      [category_name] => 沙发垫套/椅垫      [parent_id] => 189      [listorder] => 200      [display] => 1    )  [4] => Array    (      [category_id] => 191      [category_name] => 地毯地垫      [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    )

数据表数据是酱紫的；

然后，你能写出那个处理数组的方法吗，给你原数据，然后你用迭代处理成你想要的数据，不用太多，6行代码左右，你OK？

代码拷贝多了，人也就变傻了，知不知道？？？

//把栏目分组，以多维数组形式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;}

为什么不把SQL语句放在外面作为参数传递进去函数groud_category函数呢？这样就不用老是查数据库啊。

无非也就是将父ID为0开始查询，然后对其子栏目的id在做为父ID进行查询，查询出属于其id的子栏目

更多关于thinkPHP相关内容感兴趣的读者可查看本站专题：《ThinkPHP入门教程》、《thinkPHP模板操作技巧总结》、《ThinkPHP常用方法总结》、《codeigniter入门教程》、《CI(CodeIgniter)框架进阶教程》、《Zend FrameWork框架入门教程》及《PHP模板技术总结》。

希望本文所述对大家基于ThinkPHP框架的PHP程序设计有所帮助。

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