protected static function getIns()
{
if (!self::$ins instanceof self) {
self::$ins = new self();
}
return self::$ins;
}
<?php
/*
@Dscribe:购物流程页面商城的核心功能
@Author:GongBiao
@Date:2015/07/05
*/
header('Content-Type:text/html; charset=utf-8');
define('ACC', true);
require('./include/init.php');
//设置一个动作参数，判断用户想干什么，比如是下订单/写地址/提交/清空购物车等
$act = isset($_GET['act']) ? $_GET['act'] : 'buy';
$cart = CartTool::getCart(); //获取购物车实例
$goods = new GoodsModel();
if($act == 'buy'){ //把商品放入购物车
$goods_id = isset($_GET['goods_id']) ? $_GET['goods_id'] + 0 : 0;
$num = isset($_GET['num']) ? $_GET['num'] + 0 : 1;
if($goods_id){ //$goods_id为真，是想把商品入到购物车里
$g = $goods->find($goods_id);
if(!empty($g)){ //说明有商品
//需要判断此商品，是否在回收站
//此商品是否下架
if($g['is_delete'] == 1 || $g['is_on_sale'] == 0){
$msg = '此商品不能购买';
include(ROOT . 'view/front/msg.html');
exit;
<?php
define('ACC', true);
require './include/init.php';
// 设置一个动作参数,判断用户想干什么,比如是下订单/写地址/提交/清空购物车等
$act = isset($_GET['act']) ? $_GET['act'] : 'buy';
$cart = CartTool::getCart();
// 获取购物车实例
$goods = new GoodsModel();
if ($act == 'buy') {
// 这是把商品加到购物车
$goods_id = isset($_GET['goods_id']) ? $_GET['goods_id'] + 0 : 0;
$num = isset($_GET['num']) ? $_GET['num'] + 0 : 1;
if ($goods_id) {
// $goods_id为真,是想把商品放到购物车里
$g = $goods->find($goods_id);
if (!empty($g)) {
// 有此商品
// 需要判断此商品,是否在回收站
// 此商品是否已下架
if ($g['is_delete'] == 1 || $g['is_on_sale'] == 0) {
$msg = '此商品不能购买';
include ROOT . 'view/front/msg.html';
exit;
}
// 先把商品加到购物车
$cart->addItem($goods_id, $g['goods_name'], $g['shop_price'], $num);
// 判断库存够不够
$items = $cart->all();
if ($items[$goods_id]['num'] > $g['goods_number']) {
// 库存不够了,把刚才加到购物车的动作撤回!
