php 收藏功能

Posted 2022-07-20 安果移不动

<?php
/**
 * Created by PhpStorm.
 * User: liuan
 * Date: 2018-11-23 0023
 * Time: 16:25
 */
header('content-type:text/html;charset=utf-8');
include_once './lib/fun.php';
if (!$login = checkLogin()) 
    msg(2, '请登录',"login.php","collection.php");

$userId = (int)$_SESSION['user']['id'];
$goodsId = (int)$_GET['id'];
$type = (int)$_GET['type'];
// 数据库操作
$con = mysqlinit();
if ($type == 1) 
    //点击收藏
    $sql = "INSERT INTO `la_collection`( `user_id`, `good_id`) VALUES ($userId,$goodsId)";
    //商品本身表格的收藏+1
    $sql2 = "UPDATE `la_goods` set `collection_count`=`collection_count`+1 where `id`=$goodsId and (`status`=1 or `status`=3)";


 elseif ($type == 2) 
    $sql = "DELETE FROM `la_collection` WHERE `user_id`=$userId and `good_id`=$goodsId";
    //商品本身表格的收藏-1
    $sql2 = "UPDATE `la_goods` set `collection_count`=`collection_count`-1 where `id`=$goodsId and (`status`=1 or `status`=3) and `collection_count` > 0";



if (!$res = mysqli_query($con, $sql)) 
    echo "查询语句失败", mysqli_error($con), $sql;
    exit;


if (!$res2 = mysqli_query($con, $sql2)) 
    echo "查询语句失败", mysqli_error($con), $sql2;
    exit;

if (mysqli_affected_rows($con) > 0) 
    echo "<script>;history.back();</script>";

 else 
    echo "收藏或者取消收藏失败";