本篇文章给大家分享的是有关如何在thinkPHP项目中实现一个联动菜单功能，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。
<div id="newCat">
<div class="all_type" id="allGoogsCat">所有商品分类</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{$one+1}">
<span><em></em>
<a href="{:U('Category/index',array('id'=>$v['category_id'],'level'=>1))}" rel="external nofollow" >{$v.category_name}</a>
</span>
<div class="div none">
<foreach name="v['childs']" key="two" item="v2">
<dl>
<dt>
<a href="{:U('Category/index',array('id'=>$v2['category_id'],'level'=>2))}" rel="external nofollow" >{$v2.category_name}</a>
</dt>
<dd class="fl">
<foreach name="v2['childs']" item="v3">
<a href="{:U('Category/index',array('id'=>$v3['category_id'],'level'=>3))}" 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'){ ?>
//商品分类鼠标滑过
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();
});
//鼠标滑过分类显示
$("#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;
}以上就是如何在thinkPHP项目中实现一个联动菜单功能，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注亿速云行业资讯频道。
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