php购物车实现代码这个代码比较全，需要的朋友可以参考下。

ShopCar.php

class Shopcar

{

//商品列表

public $productList=array();

/**

*

* @param unknown_type $product 传进来的商品

* @return true 购物车里面没有该商品

*/

public function checkProduct($product)

{

for($i=0;$iproductList);$i++ )

{

if($this->productList[$i]['name']==$product['name'])

return $i;

}

return -1;

}

//添加到购物车

public function add($product)

{

$i=$this->checkProduct($product);

if($i==-1)

array_push($this->productList,$product);

else

$this->productList[$i]['num']+=$product['num'];

}

//删除

public function delete($product)

{

$i=$this->checkProduct($product);

if($i!=-1)

array_splice($this->productList,$i,1);

}

//返回所有的商品的信息

public function show()

{

return $this->productList;

}

}

productList.html

Insert title here

function buy(i)

{

var num=$(':input[name=num]')[i].value;

var name=$('[name=name]')[i].innerHTML;

var price=$('[name=price]')[i].innerHTML;

alert(num+name+price);

$.ajax({

type:'post', //传送的方式,get/post

url:'index.php', //发送数据的地址

cache:'false',

data:'num='+num+"&name="+name+"&price="+price,

success:function(data)

{

alert(data);

}

})

}

查看购物车

index.php

require 'Shopcar.class.php';

session_start();

$name=$_POST['name'];

$num=$_POST['num'];

$price=$_POST['price'];

$product=array('name'=>$name,'num'=>$num,'price'=>$price);

print_r($product);

if(isset($_SESSION['shopcar']))

$shopcar=unserialize($_SESSION['shopcar']);

else

$shopcar=new Shopcar();

$shopcar->add($product);

$_SESSION['shopcar']=serialize($shopcar);

show.php

require 'Shopcar.class.php';

session_start();

$shopcar=unserialize($_SESSION['shopcar']);

print_r($shopcar);

$productList=$shopcar->productList;

foreach ($productList as $product){

?>

1<?php echo $product['name']?><?php echo $product['price']?>' />