This article mainly introduces Ajax combined with PHP session to create a shopping cart in detail. It has certain reference value. Interested friends can refer to it. I hope it can help everyone.

Shopping cart web page code, the specific content is as follows:

1. Login interface login.php

用户名：
密码：

2. Login processing page loginchuli .php

StrQuery($sql);
if($mm==$pwd && $pwd!="")
{
  $UserName = $_POST["uid"];
  $_SESSION["uid"]=$uid;
  echo "OK";
}
else
{
  echo "NO";
}

3. Main page main.php

##

  
大苹果商城
  注销




  

    
浏览商品
    
查看账户
    
查看购物车
  

  
  


StrQuery($sql);
    $sum = $sum +$danjia*$v[1];
  }
  echo "
购物车中有:{$zhonglei}种商品，总价格为:{$sum}元.
";
  ?>

    Query($sql);
    
    foreach($attr as $v)
    {
      echo "";
    }
    ?>    

    

    

      
代号
      
水果名称
      
水果价格
      
源产地
      
库存量
      
操作
    

 
{$v[0]}
      
{$v[1]}
      
{$v[2]}
      
{$v[3]}
      
{$v[4]}
      
购买
  

4. Purchase processing page goumai.php

$v)
  {
    if($v[0]==$code)
    {
      $bs=1;
      $attr[$k][1] = $attr[$k][1]+1;
    }
  }
  //如果没有在数组里面出现
  if($bs==0)
  {
    $shuzu = array($code,1);
    $attr[] = $shuzu;
  }
  
  $_SESSION["gwc"]=$attr;
  
}
header("location:main.php");

5. On the order processing page, calculate the total price of the selected fruits and the remaining amount of fruits. dingdan.php

StrQuery($syue);
  
  //根据购物车数组取总金额
  $sum = 0;
  foreach($attr as $v)
  {
    $sql = "select price from fruit where ids='{$v[0]}'";
    $danjia = $db->StrQuery($sql);
    $sum = $sum +$danjia*$v[1];
  }
  if($yue<$sum)
  {
    $bs = false;
    echo "YEBUZU";
    exit;
  }
  
//判断库存是否满足

foreach($attr as $v)
{
  $skucun = "select name,numbers from fruit where ids='{$v[0]}'";
  $akucun = $db->Query($skucun);
  if($akucun[0][1]<$v[1])
  {
    $bs = false;
    echo "{$akucun[0][0]}库存不足！";
    exit;
    
  }
}

//添加订单，减库存，减余额

if($bs)
{
  //减库存
  foreach($attr as $v)
  {
    $sql = "update fruit set numbers = numbers-{$v[1]} where ids='{$v[0]}'";
    $db->Query($sql,0);
  }
  
  //减余额
  $jianyue="update login set account=account-{$sum} where username='{$uid}'";
  $db->Query($jianyue,0);
  
  //添加订单
  $dingdanhao = $uid+date("YmdHis");
  $t = time();
  
  $sorder = "insert into orders values('{$dingdanhao}','{$uid}','{$t}')";
  $db->Query($sorder,0);
  
  foreach($attr as $v)
  {
    $sxq = "insert into orderdetails values('','{$dingdanhao}','{$v[0]}','{$v[1]}')";
    $db->Query($sxq,0);
  }
}

echo "OK";

6. Shopping cart page

  
大苹果商城
  注销




  

    
浏览商品
    
查看账户
    
查看购物车
  

  
  

    
$v)
    {
      $sql = "select name,price from fruit where ids='{$v[0]}'";
      $ashuiguo = $db->Query($sql);
    
      echo "";
      
    }
    
    ?>

    

    

      
商品名称
      
商品单价
      
购买数量
      
操作
    

{$ashuiguo[0][0]}
{$ashuiguo[0][1]}
{$v[1]}
删除
    
提交订单

  

7. Shopping cart page deletion processing page shanchu. php

##

1)
{
  $attr[$sy][1] = $attr[$sy][1]-1;
}
else
{
  unset($attr[$sy]);
  $attr = array_values($attr);
}
$_SESSION["gwc"]=$attr;

header("location:gouwuche.php");

8.账户余额页面zhanghu.php















  
大苹果商城
  注销




  

    
浏览商品
    
查看账户
    
查看购物车
  
  
  


strQuery($sql);
    
    echo ("您的账户中还剩余".$result);
  ?>

  

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PHP uses cookies to implement shopping cart tutorial case

JavaScript Implementation of Simple Shopping Cart Code Example

php Example Analysis of Preliminary Implementation of Shopping Cart Function

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