php购物车实现代码(1/2)

关于购物车，这个是在电子商务方面使用的比较多，用户选择好自己的商品需要保存起来，最后去收银台，这很像我们实际生活的超市，所以我现来写一个简单的php购物车实例代码，比较详细只要一步步，处理好就OK了。php教程购物车实现代码

关于购物车，这个是在电子商务方面使用的比较多，用户选择好自己的商品需要保存起来，最后去收银台，这很像我们实际生活的超市，所以我现来写一个简单的php购物车实例代码，比较详细只要一步步，处理好就ok了。

些购物车会用到php文件
main.php 显示商品
additem.php把商品加入购物车
cearcart.php删除购物车中的商品
shoppingcart.php 操作类

用户的数据库教程有
inventory
create table inventory (
product tinytext not null,
quantity tinytext not null,
id int(4) default '0' not null auto_increment,
description tinytext not null,
price float(10,2) default '0.00' not null,
category char(1) default '' not null,
key id (id),
primary key (id),
key price (price)
);
insert into inventory values ('硬盘','5','1','80g','5600','1');
insert into inventory values ('cpu','12','2','p4-2.4g','6600','1');
insert into inventory values ('dvd-rom','7','3','12x','2000','1');
insert into inventory values ('主板www.php100.com','3','4','asus','5000','2');
insert into inventory values ('显示卡','6','5','64m','4500','1');
insert into inventory values ('刻录机','4','6','52w','3000','1');

shopping
create table shopping (
session tinytext not null,
product tinytext not null,
quantity tinytext not null,
card tinytext not null,
id int(4) default '0' not null auto_increment,
key id (id),
primary key (id)
);
shopper

create database shopper;
use shopper;
create table shopping (
session tinytext not null,
product tinytext not null,
quantity tinytext not null,
card tinytext not null,
id int(4) default '0' not null auto_increment,
key id (id),
primary key (id)
);
create table inventory (
product tinytext not null,
quantity tinytext not null,
id int(4) default '0' not null auto_increment,
description tinytext not null,
price float(10,2) default '0.00' not null,
category char(1) default '' not null,
key id (id),
primary key (id),
key price (price)
);
insert into inventory values ('硬盘','5','1','80g','5600','1');
insert into inventory values ('cpu','12','2','p4-2.4g','6600','1');
insert into inventory values ('dvd-rom','7','3','12x','2000','1');
insert into inventory values ('主板php100.com','3','4','asus','5000','2');
insert into inventory values ('显示卡','6','5','64m','4500','1');
insert into inventory values ('刻录机','4','6','52w','3000','1');
*/
//main.php 显示购物车所有商品
include("shoppingcart.php");
$cart = new cart;
$table="shopping";
/* 查询并显示所有存货表中的信息 */
$query = "select * from inventory";
$invresult = mysql教程_query($query);
if (!($invresult)) {
echo "查询失败<br>";
exit;
}
echo "以下产品可供订购∶";
echo "<table border=0>";
echo "<tr><td bgcolor=#aaccff>产品编号</td><td bgcolor=#aaccff>产品名称</td><td bgcolor=#aaccff>单价</td>";
echo "<td bgcolor=#aaccff>剩余数量</td><td bgcolor=#aaccff>产品描述</td><td bgcolor=#aaccff>放入购物车</td></tr>";
while($row_inventory = mysql_fetch_object($invresult)) {
echo "<tr><td bgcolor=#aaccff>".$row_inventory->id."</td>";
echo "<td bgcolor=#aaccff>".$row_inventory->product."</td>";
echo "<td bgcolor=#aaccff>".$row_inventory->price."</td>";
echo "<td bgcolor=#aaccff>".$row_inventory->quantity."</td>";
echo "<td bgcolor=#aaccff>".$row_inventory->description."</td>";
echo "<td bgcolor=#aaccff><a href='additem.php?product=".$row_inventory->product."'><img border='0' src='cart.gif' width='81' height='17'></a></td></tr>";
}
echo "</table>";
echo "<br>购物车中产品的数量∶".$cart->quant_items($table, $session);
echo "<br><br><a href='clearcart.php'><img border='0' src='car.gif'></a>清空购物车";
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