CI框架无限级分类+递归的实现代码

CI是什么?

CodeIgniter是一个轻量级但功能强大的PHP框架，基于MVC设计模式，提供了一套丰富的类库，简单易学，高效实用。

下面看下CI框架无限级分类+递归的实现代码，具体代码如下所示：

    //无级分类+递归
    public function digui(){
    $crr = $this->db->get('category')->result_array();
    $list['type'] = $this->nolimit($crr,0,0);
    $this->load->view('list1',$list);
    }
    public function nolimit($crr,$p_id,$level){
    static $arr = array();
    foreach($crr as $v){
    if($v['parent_id']==$p_id){
    $v['level'] = $level;
    $arr[] = $v;
    $this->nolimit($crr,$v['cat_id'],$level+1);
    }
    }
    return $arr;
    }
    <td><?PHP echo str_repeat('    ',$val['level'])?><?php echo $val['cat_name']?></td>
    //获取1级、2级、3级分类
    public function sel_child($p_id){
    $arr = $this->sel_son($p_id);
    foreach($arr as $k=>$v){
    $tmp = $this->sel_son($v['cat_id']);
    foreach($tmp as $kk=>$vv){
    $tmp2 = $this->sel_son($vv['cat_id']);
    $tmp[$kk]['childs'] = $tmp2;
    }
    $arr[$k]['child'] = $tmp;
    }
    return $arr;
    }
    //通过ID获取所有的下级分类
    public function sel_son($id){
    $this->db->where("parent_id=$id");
    return $this->db->get(self::$cate)->result_array();
    }
    //渲染展示主页模板
    public function lists(){
    $p_id = 0;
    $brr['type'] = $this->Home_model->sel_child($p_id);
    $brr['list'] = $this->db->get('goods')->result_array();
    $this->load->view('Home/list.html',$brr);
    }
    <?php foreach($type as $v){?>
    <li id="cat_1" class="">
    <h3><a href=""><?php echo $v['cat_name']?></a></h3>
    <?php foreach($v['child'] as $vv){?>
    <dl class="clearfix">
    <dt><a href=""><?php echo $vv['cat_name']?></a></dt>
    <?php foreach($vv['childs'] as $vvv){?>
    <a href=""><?php echo $vvv['cat_name']?></a>
    <?php }?>
    </dl>
    <?php }?>
    </li>
    <?php }?>

以上所述是小编给大家介绍的CI框架无限级分类+递归的实现代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！