这篇文章主要介绍了thinkphp实现的联动菜单功能,结合实例形式分析了thinkphp联动菜单的实现步骤与具体操作技巧,需要的朋友可以参考下
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
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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
(
)
)
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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
)
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数据表数据是酱紫的；
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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;
}
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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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