php 购物车程序

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;

}

}

html

index.ph

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

print_r($shopcar);
$productList=$shopcar->productList;

foreach ($productList as $product){
?>