php实现小程序支付完整版
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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LibraryVendor下，取名Wxpay 修改WxPay.Config.php 里的appid appsecret keyMCHID 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','intval'); $payment = I('payment','trim'); $userId = $this->userid; $cart = json_decode($cart,true); if (empty($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=" . $addressId)->find(); if (empty($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,$orderId,$order['ordersn']); } } /** * 微信支付 * @author 大脸猫脸大 * @param $cart * @param $cartAmount * @param $address * @param $user */ private function weixinPay($cartAmount,$openId,$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($data); exit(' }else { Log::write(var_export($val,C('LOG_PATH')."wx_pay_notify_".date('y_m_d').'.log'); exit(' } } payNotify 回调方法里一定要注意返回 代码如下: 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。 欢迎大家指正。 以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。 （编辑：安卓应用网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |