PHP怎么做购物车？

购物车有两种实现方式，一种是保存在数据库，另外一种是session

企业建站必须是能够以充分展现企业形象为主要目的，是企业文化与产品对外扩展宣传的重要窗口，一个合格的网站不仅仅能为公司带来巨大的互联网上的收集和信息发布平台，创新互联公司面向各种领域：成都凿毛机等成都网站设计、全网整合营销推广解决方案、网站设计等建站排名服务。

保存在数据库的不会以为关闭浏览器而消失，session会因为关闭浏览器就没有了。

原理是把每个商品的信息存到一个数组里面，然后以这个商品的id作为键值，然后吧数组存到session里面就行，

如果是存入数据库的话，就用关联数据存一下就行的

请教关于PHP购物车代码的数据库表和字段

PHP Code

div id="products-wrapper"

h1Products/h1

div class="products"

?php

//current URL of the Page. cart_update.php redirects back to this URL

$current_url = base64_encode($url="http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);

$results = $mysqli-query("SELECT * FROM cart ORDER BY id ASC");

if ($results) {

//fetch results set as object and output HTML

while($obj = $results-fetch_object())

{

echo 'div class="product"';

echo 'form method="post" action="cart_update.php"';

echo 'div class="product-thumb"img src="images/'.$obj-product_img_name.'"/div';

echo 'div class="product-content"h3'.$obj-product_name.'/h3';

echo 'div class="product-desc"'.$obj-product_desc.'/div';

echo 'div class="product-info"';

echo 'Price '.$currency.$obj-price.' | ';

echo 'Qty input type="text" name="product_qty" value="1" size="3" /';

echo 'button class="add_to_cart"Add To Cart/button';

echo '/div/div';

echo 'input type="hidden" name="product_code" value="'.$obj-product_code.'" /';

echo 'input type="hidden" name="type" value="add" /';

echo 'input type="hidden" name="return_url" value="'.$current_url.'" /';

echo '/form';

echo '/div';

}

}

?

/div

div class="shopping-cart"

h2Your Shopping Cart/h2

?php

if(isset($_SESSION["products"]))

{

$total = 0;

echo 'ol';

foreach ($_SESSION["products"] as $cart_itm)

{

echo 'li class="cart-itm"';

echo 'span class="remove-itm"a href="cart_update.php?removep='.$cart_itm["code"].'return_url='.$current_url.'"×/a/span';

echo 'h3'.$cart_itm["name"].'/h3';

echo 'div class="p-code"P code : '.$cart_itm["code"].'/div';

echo 'div class="p-qty"Qty : '.$cart_itm["qty"].'/div';

echo 'div class="p-price"Price :'.$currency.$cart_itm["price"].'/div';

echo '/li';

$subtotal = ($cart_itm["price"]*$cart_itm["qty"]);

$total = ($total + $subtotal);

}

echo '/ol';

echo 'span class="check-out-txt"strongTotal : '.$currency.$total.'/strong a href="view_cart.php"Check-out!/a/span';

echo 'span class="empty-cart"a href="cart_update.php?emptycart=1return_url='.$current_url.'"Empty Cart/a/span';

}else{

echo 'Your Cart is empty';

}

?

/div

cart_update.php

PHP Code

?php

session_start();

include_once("config.php");

//empty cart by distroying current session

if(isset($_GET["emptycart"]) $_GET["emptycart"]==1)

{

$return_url = base64_decode($_GET["return_url"]); //return url

session_destroy();

header('Location:'.$return_url);

}

//add item in shopping cart

if(isset($_POST["type"]) $_POST["type"]=='add')

{

$product_code = filter_var($_POST["product_code"], FILTER_SANITIZE_STRING); //product code

$product_qty = filter_var($_POST["product_qty"], FILTER_SANITIZE_NUMBER_INT); //product code

$return_url = base64_decode($_POST["return_url"]); //return url

//limit quantity for single product

if($product_qty 10){

die('div align="center"This demo does not allowed more than 10 quantity!br /a href=""Back To Products/a./div');

}

//MySqli query - get details of item from db using product code

$results = $mysqli-query("SELECT product_name,price FROM cart WHERE product_code='$product_code' LIMIT 1");

$obj = $results-fetch_object();

if ($results) { //we have the product info

//prepare array for the session variable

$new_product = array(array('name'=$obj-product_name, 'code'=$product_code, 'qty'=$product_qty, 'price'=$obj-price));

if(isset($_SESSION["products"])) //if we have the session

{

$found = false; //set found item to false

foreach ($_SESSION["products"] as $cart_itm) //loop through session array

{

if($cart_itm["code"] == $product_code){ //the item exist in array

$product[] = array('name'=$cart_itm["name"], 'code'=$cart_itm["code"], 'qty'=$product_qty, 'price'=$cart_itm["price"]);

$found = true;

}else{

//item doesn't exist in the list, just retrive old info and prepare array for session var

$product[] = array('name'=$cart_itm["name"], 'code'=$cart_itm["code"], 'qty'=$cart_itm["qty"], 'price'=$cart_itm["price"]);

}

}

if($found == false) //we didn't find item in array

{

//add new user item in array

$_SESSION["products"] = array_merge($product, $new_product);

}else{

//found user item in array list, and increased the quantity

$_SESSION["products"] = $product;

}

}else{

//create a new session var if does not exist

$_SESSION["products"] = $new_product;

}

}

//redirect back to original page

header('Location:'.$return_url);

}

//remove item from shopping cart

if(isset($_GET["removep"]) isset($_GET["return_url"]) isset($_SESSION["products"]))

{

$product_code = $_GET["removep"]; //get the product code to remove

$return_url = base64_decode($_GET["return_url"]); //get return url

foreach ($_SESSION["products"] as $cart_itm) //loop through session array var

{

if($cart_itm["code"]!=$product_code){ //item does,t exist in the list

$product[] = array('name'=$cart_itm["name"], 'code'=$cart_itm["code"], 'qty'=$cart_itm["qty"], 'price'=$cart_itm["price"]);

}

//create a new product list for cart

$_SESSION["products"] = $product;

}

//redirect back to original page

header('Location:'.$return_url);

}

?

view_cart.php

PHP Code

div class="view-cart"

?php

$current_url = base64_encode($url="http://".$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);

if(isset($_SESSION["products"]))

{

$total = 0;

echo 'form method="post" action="paypal-express-checkout/process.php"';

echo 'ul';

$cart_items = 0;

foreach ($_SESSION["products"] as $cart_itm)

{

$product_code = $cart_itm["code"];

$results = $mysqli-query("SELECT product_name,product_desc, price FROM cart WHERE product_code='$product_code' LIMIT 1");

$obj = $results-fetch_object();

echo 'li class="cart-itm"';

echo 'span class="remove-itm"a href="cart_update.php?removep='.$cart_itm["code"].'return_url='.$current_url.'"×/a/span';

echo 'div class="p-price"'.$currency.$obj-price.'/div';

echo 'div class="product-info"';

echo 'h3'.$obj-product_name.' (Code :'.$product_code.')/h3 ';

echo 'div class="p-qty"Qty : '.$cart_itm["qty"].'/div';

echo 'div'.$obj-product_desc.'/div';

echo '/div';

echo '/li';

$subtotal = ($cart_itm["price"]*$cart_itm["qty"]);

$total = ($total + $subtotal);

echo 'input type="hidden" name="item_name['.$cart_items.']" value="'.$obj-product_name.'" /';

echo 'input type="hidden" name="item_code['.$cart_items.']" value="'.$product_code.'" /';

echo 'input type="hidden" name="item_desc['.$cart_items.']" value="'.$obj-product_desc.'" /';

echo 'input type="hidden" name="item_qty['.$cart_items.']" value="'.$cart_itm["qty"].'" /';

$cart_items ++;

}

echo '/ul';

echo 'span class="check-out-txt"';

echo 'strongTotal : '.$currency.$total.'/strong ';

echo '/span';

echo '/form';

}else{

echo 'Your Cart is empty';

}

?

/div

/div

php 实现 购物车 提交到 订单的数据库

用户登陆后系统应该会分配一个session ： id，这个id应该是改用于的用户表id。然后再做一个购物车的表，里面可以只考虑存商品id、用户id等关键信息；

当用户提交购买的时候再做相关的操作，具体可以参考淘宝、天猫的购物车已经后续付款效果。

php+MySQL购物车模块怎么做？

参照ecshop购物车功能。在核心文件，即客户第一次访问网站既生成一个字符串session，设定session的生存时间，防止因客户不操作而session一直存在。 cart表中就不说了。客户没有登录的时候用原始生成的session，添加购物车就插入数据好了。如果客户登录了，修改cart表中的uid 。

设计一个购物车，包含html和php两个文件，html让客户输入个人信息以及显示商品信息。php将订单信息返回给

订单表，客户信息表，商品信息表，购物车表存放客户信息表，商品信息表的主键id，用来关联，并且建立一个数量的字段，用来计算总价。客户录入表单去提交页面添加判断然后跳转购物页，添加购物车的话直接基于数量和两个主键id去添加，下单的话基于时间戳生成订单编号和客户编号存放在订单表中，记得主外键关联

当前名称：购物车数据库设计php,购物商城数据库设计
分享URL：http://scgulin.cn/article/hspose.html