php实现小程序支付完整版
发布:smiling 来源: PHP粉丝网 添加日期:2021-10-31 13:23:48 浏览: 评论:0
这篇文章主要为大家详细介绍了php实现小程序支付完整版,具有一定的参考价值,感兴趣的小伙伴们可以参考一下。
本文实例为大家分享了php实现小程序支付的具体代码,供大家参考,具体内容如下
环境: tp3.2 + 小程序 微信支付功能开通
Step1: 下载PHP 支付SDK(下载地址) 放到Library\Vendor下,取名Wxpay
修改WxPay.Config.php 里的appid appsecret key MCHID
Step2: 小程序 js 代码:
- var url = getApp().globalData.httpServer + 'api/buy/pay';
- var userId = getApp().globalData.userId;
- var totalMoney = this.data.totalMoney;
- var cart = this.data.goods;
- var param = {
- cart: JSON.stringify(cart),
- cartamount: totalMoney,
- userid: userId,
- payment: this.data.payment,
- addressid: defaultAddress.id
- };
- var that = this;
- util.http(url, param, function (ret) {
- if (ret.data.code == 1) {
- if (that.data.payment == 'balance') { // 余额支付
- that.afterPaySuccess(ret.data.data);
- } else { // 微信支付
- wx.requestPayment({
- timeStamp: ret.data.data.timeStamp,
- nonceStr: ret.data.data.nonceStr,
- package: ret.data.data.package,
- signType: ret.data.data.signType,
- paySign: ret.data.data.paySign,
- 'success': function (res) {
- that.afterPaySuccess(ret.data.data.orderid);
- },
- 'fail': function (res) {
- console.log(res);
- }
- })
- }
- } else {
- util.showTip(ret.data.msg, '提交订单失败');
- }
- });
- /**
- * 网络请求
- */
- function http(url, params, callback) {
- wx.request({
- url: url,
- data: params,
- success: function (res) {
- callback(res);
- },
- fail: function (err) {
- console.log(err);
- }
- });
- }
Step3: 接口代码:
- public function pay()
- {
- $cart = I('cart', '', 'trim');
- $cartAmount = I('cartamount');
- $addressId = I('addressid', 0, 'intval');
- $payment = I('payment', '', 'trim');
- $userId = $this->userid;
- $cart = json_decode($cart, true);
- if (emptyempty($cart)) {
- $result['msg'] = '购物车获取失败';
- $result['code'] = 0;
- $this->ajaxReturn($result);
- }
- $totalMoney = 0;
- foreach ($cart as $goods) {
- $money = $goods['price']; // price
- $selectCount = $goods['selectcount']; // price
- $itemAmount = number_format($money * $selectCount, 2, '.', '');
- $totalMoney += $itemAmount;
- }
- // 检查总金额是否一致
- if ($totalMoney != $cartAmount) {
- $result['msg'] = '总金额不匹配:' . $totalMoney;
- $result['code'] = 0;
- $this->ajaxReturn($result);
- }
- // 获取用户地址
- $address = M('MemberAddress')->where('userid=' . $userId . " and id=" . $addressId)->find();
- if (emptyempty($address)) {
- $result['msg'] = '用户地址不存在';
- $result['code'] = 0;
- $this->ajaxReturn($result);
- }
- // 用户信息
- $user = M('Member')->where("id=" . $userId)->find();
- if ($payment == 'balance') {
- if ($user['amount'] < $cartAmount) {
- $result['msg'] = '余额不足';
- $result['code'] = 0;
- $this->ajaxReturn($result);
- }
- }
- // 生成订单
- $order['ordersn'] = $this->genOrdersn($user['id']);
- $order['price'] = $cartAmount;
- $order['addressid'] = $address['id'];
- $order['addressinfo'] = serialize($address); //json_encode($address);
- $order['longitude'] = $address['longitude'];
- $order['latitude'] = $address['latitude'];
- $order['addtime'] = time();
- $order['status'] = 0;
- $order['userid'] = $user['id'];
- $order['paytype'] = $payment;
- $order['paysn'] = '';
- $order['paytime'] = time();
- $orderId = M("Order")->add($order);
- if ($orderId == 0) {
- $result['msg'] = '创建订单失败';
- $result['code'] = 0;
- $this->ajaxReturn($result);
- }
- foreach ($cart as $goods) {
- $orderGoods['orderid'] = $orderId;
- $orderGoods['goodsid'] = $goods['id'];
- $orderGoods['title'] = $goods['title'];
- $orderGoods['price'] = $goods['price'];
- $orderGoods['attr'] = $goods['attr'];
- $orderGoods['pic'] = $goods['pic'];
- $orderGoods['num'] = $goods['selectcount'];
- M("OrderGoods")->add($orderGoods);
- }
- if ($payment == 'balance') {
- // 余额支付
- $this->balancePay($cartAmount, $user['wxopenid'], $orderId);
- } else if ($payment == 'weixin') {
- // 微信支付
- $this->weixinPay($cartAmount, $user['wxopenid'], $orderId, $order['ordersn']);
- }
- }
- /**
- * 微信支付
- * @author 大脸猫脸大
- * @param $cart
- * @param $cartAmount
- * @param $address
- * @param $user
- */
- private function weixinPay($cartAmount, $openId, $orderId, $orderSn)
- {
- import("Vendor.Wxpay.lib.WxPay#Api", "", ".php");
- //订单号
- $money = $cartAmount * 100;
- $openid = $openId;
- $input = new \WxPayUnifiedOrder();
- $input->SetBody("迪克-商品");
- $input->SetOut_trade_no("$orderSn");
- $input->SetTotal_fee("$money");
- $input->SetNotify_url("https://" . $_SERVER['HTTP_HOST'] . "/api/buy/payNotify");
- $input->SetTrade_type("JSAPI");
- $input->SetOpenid($openid);
- $unifiedOrder = \WxPayApi::unifiedOrder($input);
- if ($unifiedOrder['result_code'] == 'SUCCESS' && $unifiedOrder['return_code'] == 'SUCCESS') {
- $time = time();
- $data['timeStamp'] = "$time"; //时间戳
- $data['nonceStr'] = $unifiedOrder['nonce_str']; //随机字符串
- $data['signType'] = 'MD5'; //签名算法,暂支持 MD5
- $data['package'] = 'prepay_id=' . $unifiedOrder['prepay_id']; //统一下单接口返回的 prepay_id 参数值,提交格式如:prepay_id=*
- $data['paySign'] = $this->genPaySign($unifiedOrder, $time);// 之前以为是$unifiedOrder['sign']; 后来发现是调用的这种方法. 签名方案参见微信公众号支付帮助文档;
- $data['out_trade_no'] = $orderSn;
- $data['orderid'] = $orderId;
- $return['code'] = 1;
- $return['data'] = $data;
- } else {
- Log::write(var_export($unifiedOrder, true), Log::ERR, '', C('LOG_PATH')."wx_pay_".date('y_m_d').'.log');
- $return['code'] = 0;
- $return['msg'] = '微信支付失败';// $unifiedOrder['RETURN_MSG'];
- }
- $this->ajaxReturn($return);
- }
- /* 生成支付签名*/
- private function genPaySign($unifiedOrder, $time)
- {
- $appId = \WxPayConfig::APPID;
- $nonceStr = $unifiedOrder['nonce_str'];
- $package = 'prepay_id=' . $unifiedOrder['prepay_id'];
- $signType = "MD5";
- $timeStamp = $time;
- $key = \WxPayConfig::KEY;
- $sign = md5(sprintf("appId=%s&nonceStr=%s&package=%s&signType=%s&timeStamp=%s&key=%s", $appId, $nonceStr, $package, $signType, $timeStamp, $key));
- }
- /**
- * 支付回调
- * @author:大脸猫脸大
- */
- public function payNotify()
- {
- import("Vendor.Wxpay.lib.WxPay#Data", "", ".php");
- $xml = $GLOBALS['HTTP_RAW_POST_DATA'];
- $val = \WxPayResults::Init($xml);
- if ($val['result_code'] == 'SUCCESS' && $val['return_code'] == 'SUCCESS') {
- $orderSn = $val['out_trade_no'];
- $transactionId = $val['transaction_id'];
- $data = array('paytype' => 'weixin', 'status' => '1', 'paytime' => time(), 'paysn' => $transactionId);
- M("Order")->where("ordersn='$orderSn'")->setField($data);
- exit('<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>');
- }else {
- Log::write(var_export($val, true), Log::ERR, '', C('LOG_PATH')."wx_pay_notify_".date('y_m_d').'.log');
- exit('<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>');
- }
- }
payNotify 回调方法里一定要注意返回:
<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>
如果不处理,你会发现payNotify 会被执行很多次参见:官方文档
总结一下:
注意二点,1.签名的问题 2. 回调方法的返回处理。
Tags: php小程序支付
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