php multi-level classification filtering function-PHP Tutorial-php.cn

php multi-level classification filtering function

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Release： 2023-03-29 15:18:02

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This article mainly introduces the multi-level classification filtering function of PHP, which has certain reference value. Now I share it with everyone. Friends in need can refer to it

php multi-level classification filtering function

Emphasis: I originally wanted to write an ajax filter, but there were some problems with the paging after allocating data, so I wrote a regular one. In fact, this function is not very complicated, it is just a process of checking data, but it still requires some knowledge of the front-end.

First go to the back-end code:

assign('res1',$type[0]);// 赋值数据集
            $this->assign('res2',$type[1]);// 赋值数据集
            if($type[0] =='不限'){               
            $type[0]="";
            }            
            if($type[1] =='不限'){                
            $type[1]="";
            }            
            $data['color']=array('like', "%$type[0]%");            
            $data['size']=array('like', "%$type[1]%");
        }        //分页
        $count = $goods->where($data)->count();// 查询满足要求的总记录数
        $Page = new \Think\Page($count,2);// 实例化分页类 传入总记录数和每页显示的记录数(25)
        $Page->setConfig('prev','上一页');        
        $Page->setConfig('next','下一页');        
        $show = $Page->show();// 分页显示输出
        $list = $goods->order('id asc')->where($data)->limit($Page->firstRow.','.$Page->listRows)->select();        
        $this->assign('list',$list);// 赋值数据集
        $this->assign('page',$show);// 赋值分页输出
        $this->display();
    }

}

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Front-end code:

Document

不限红色黄色蓝色绿色

不限大号中号小号

{$vo.title}

{$page}

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Note: The front section is transmitted through a hidden form, and special attention should be paid to submitting it through get.

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