PHP 模拟砍价流程

最新推荐文章于 2024-10-19 13:07:03 发布

jweicao

最新推荐文章于 2024-10-19 13:07:03 发布

阅读量570

点赞数

本文链接：https://blog.youkuaiyun.com/jweicao/article/details/118574445

版权

本文详细介绍了如何使用PHP来模拟砍价活动，包括查询和添加砍价活动的后台操作，同时探讨了前端分离的设计思想，以及在模板样式和分享按钮功能的实现细节。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

查询和添加砍价活动

<?php
declare (strict_types = 1);

namespace app\home\controller;

use app\home\model\BarGoods;
use app\home\model\BarRecord;
use app\model\Renting;
use service\JsonService;
use think\facade\Db;
use think\facade\Validate;
use think\Request;
use tools\upload\Upload;

class Bargain
{
   
    /**
     * 显示资源列表
     * @return \think\Response
     */
    public function index()
    {
   
        $data = BarGoods::paginate(5);
        return view('',compact('data'));
    }

    /**
     * 显示创建资源表单页.
     *
     * @return \think\Response
     */
    public function create()
    {
   
        return view();
    }

    public function upFile(Request $request) {
   
        $file = $request->file('file');
        $img = Upload::upload($file);
        $path = Upload::qiniu($img);
        if ($path) {
   
            return JsonService::success('ok',$path);
        }
        return  JsonService::fail('上传失败');
    }

    /**
     * 保存新建的资源
     *
     * @param  \think\Request  $request
     * @return \think\Response
     */
    public function save(Request $request)
    {
   
        $params = input();
        $model = BarGoods::create($params);
        if ($model) return JsonService::success('砍价商品添加成功',$params);
        return JsonService::fail('添加失败');
    }

    /**
     * @param $total string 砍价金额
     * @param $num int 砍价次数
     * @param $min float 最低可砍
     * @param $max float 最高可砍
     * @param int $level 成级
     * @return string
     */

    public function bar($total,$num,$min,$max,$level=0 )
    {
   

        if ($num > 1) {
   
            $safe_total = ($total - ($num - 1) * $min) / ($num - 1);//随机安全上限
            if ($min < $safe_total) {
   //总价为最低价时，算出来的随机上限有可能会比最低价还低
                $bar = mt_rand((int)$min * 100, (int)$max * 100) / 100;
            }

            if ($bar > $total ) {
   
                return $this->bar($total,$num, $min,$max,$level + 1);
            }
            // 保留两位小数
            return  $bar = sprintf("%.2f", $bar);   //砍掉的金额
        }
    }

    public function firstBar($uid,$bar_id){
   
        $bar_goods = BarGoods::where('id',$bar_id)
            ->field('bar_price,bar_num,bar_min_price,bar_max_price')->find()->toArray();

        list($bar_price,$bar_num,$bar_min_price,$bar_max_price) = array_values($bar_goods);
        $bar = $this->bar($bar_price,$bar_num,$bar_min_price,$bar_max_price); //砍价金额
        $data = [
            'uid'=> $uid,
            'bar_id' =>$bar_id,
            'bar_uid' =>$uid,
            'bar_price' => $bar,
            'old_price'=> $bar_price-$bar,
            'old_num' => $bar_num-1
        ];
        return  $model = BarRecord::create($data);
    }

    public function lastBar($uid,$bar_id,$bar_uid){
   
        $where = [
            'uid'=>$uid,
            'bar_id' =>$bar_id
        ];
        $BarRecord = BarRecord::where($where)->order('old_price',