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Php实现无限栏目分类读取的例子

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Release: 2016-06-02 09:13:42
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实现无限极栏目分类思路:获取自增加ID(也就是父ID),然后在到数据库获取子ID(也就是uid子id) 数据如下:

id:1  uid:0  我是栏目1

id:2  uid:1  我是栏目2

id:3  uid:1  我是栏目1的子类

显示结果:

我是栏目1

我是栏目1的子类

我是栏目2

下面是Php代码,代码如下:

<?php
$query = $this->db->query("SELECT * FROM category");
$list = $query->result();
foreach ($list as $v) {
    if ($v->category_id == 0) { //获取父栏目(等于0的都是父栏目)
        $categoryul = anchor("home/content/" . $v->id, $v->category_name);
        echo "<ul>" . $categoryul . "</ul>";
        $listx = $this->Listx->list_id($v->id); //在根据父id显示出指定的子栏目
        foreach ($listx as $vid) {
            //开源代码phprm.com
            $category = anchor("home/content/" . $vid->id, $vid->category_name);
            echo "<li>" . $category . "</li>";
        }
    }
}
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