根据项目需要写的一个购物车程序（session的）
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根据项目需要写的一个购物车程序（session的）
class GoodsCart{
public $mycart; //购物车
//构造函数初始化购物车
function __construct($mycart){
session_start();
$this->mycart = $mycart;
if(!isset($_SESSION[$mycart])){
$_SESSION[$mycart] = array();
}
}
//添加商品
public function AddOneGoods($date){
$i = 0;
session_start();
if(empty($_SESSION[$this->mycart])){
$i = 0;
}else {
$i = count($_SESSION[$this->mycart]);
}
foreach ($date as $key => $value){
$_SESSION[$this->mycart][$i][$key] = $value;
}
$_SESSION[$this->mycart][$i]['id'] = $i;
}
//修改商品
public function EditCart($i,$date){
if(array_key_exists($i,$_SESSION[$this->mycart]) == false){
die('该商品不存在');
}else {
foreach ($date as $key => $value){
$_SESSION[$this->mycart][$i][$key] = $value;
}
}
}
//删除一件商品
public function DelOne($id){
if(count($_SESSION[$this->mycart]) ==1){
unset($_SESSION[$this->mycart]);
}else {
unset($_SESSION[$this->mycart][$id]);
$this->UpDate();
}
return true;
}
//清空购物车
public function DelCart(){
unset($_SESSION[$this->mycart]);
}
//获得购物车数据
public function GetDate(){
if(!empty($_SESSION[$this->mycart])){
return $_SESSION[$this->mycart];
}else {
return array();
}
}
public function UpDate(){
$cart = $_SESSION[$this->mycart];
$_SESSION[$this->mycart] = array();
foreach ($cart as $v)
array_push($_SESSION[$this->mycart],$v);
for($i=0;$i<count($_SESSION[$this->mycart]);$i++){
$_SESSION[$this->mycart][$i]['id'] = $i;
}
}
public function GoodsCount($goods){
$count = 0;
for($i=0;$i<count($_SESSION[$this->mycart]);$i++){
$count = $count + $_SESSION[$this->mycart][$i][$goods];
}
return $count;
}
} |
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