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
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