shopNC classification, recursive query hierarchical display

1. Post the picture first:

2. Requirements are displayed hierarchically according to the classification table, as shown in the figure:

3. Implementation, the pasting code is as follows:

//Classification list query

<code>$tmp_list = $model_class->getTreeClassList(3);//所有列表
    if (is_array($tmp_list)){
        foreach ($tmp_list as $k => $v){
            $num = $model_class->recursive($v['tax_parent_id']);//此处需要用到递归查询方法
            $tmp_list[$k]['tax_name'] = str_repeat(" —",$num).$v['tax_name'];
        }
    }
</code>

/ /recursive query
//@param int $tax_parent_id Parent ID

//@param int $num

<code>public function recursive($tax_parent_id, $num = 0){
    $parent = $this->getGoodsClassinfo(array('tax_id'=>$tax_parent_id,'tax_parent_id'));
    if($parent == true){
        $num++;
        $num = $this->digui($parent['tax_parent_id'],$num); 
    }
    return $num;
}
</code>

4. Complete

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