PHP實現(xiàn)微信小程序支付完整版，可以借鑒！

本文實例為大家分享了php實現(xiàn)小程序支付的具體代碼，供大家參考，具體內(nèi)容如下

環(huán)境： tp3.2.3? + 小程序 微信支付功能開通

Step1:??下載PHP 支付SDK(-) ?放到Library\Vendor下，取名Wxpay

修改WxPay.Config.php 里的appid appsecret key?MCHID

Step2:?小程序 js 代碼：

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') { // 余額支付 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, '提交訂單失敗'); } });

/** * 網(wǎng)絡請求 */ function http(url, params, callback) { wx.request({ url: url, data: params, success: function (res) { callback(res); }, fail: function (err) { console.log(err); } }); }

Step3:?接口代碼：

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 (empty($cart)) { $result['msg'] = '購物車獲取失敗'; $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 += $itemAmount; } // 檢查總金額是否一致 if ($totalMoney != $cartAmount) { $result['msg'] = '總金額不匹配:' . $totalMoney; $result['code'] = 0; $this->ajaxReturn($result); } // 獲取用戶地址 $address = M('MemberAddress')->where('userid=' . $userId . " and id=" . $addressId)->find(); if (empty($address)) { $result['msg'] = '用戶地址不存在'; $result['code'] = 0; $this->ajaxReturn($result); } // 用戶信息 $user = M('Member')->where("id=" . $userId)->find(); if ($payment == 'balance') { if ($user['amount'] < $cartAmount) { $result['msg'] = '余額不足'; $result['code'] = 0; $this->ajaxReturn($result); } } // 生成訂單 $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'] = '創(chuàng)建訂單失敗'; $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') { // 余額支付 $this->balancePay($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 大臉貓臉大 * @param $cart * @param $cartAmount * @param $address * @param $user */ private function weixinPay($cartAmount, $openId, $orderId, $orderSn) { import("Vendor.Wxpay.lib.WxPay#Api", "", ".php"); //訂單號 $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"; //時間戳 $data['nonceStr'] = $unifiedOrder['nonce_str']; //隨機字符串 $data['signType'] = 'MD5'; //簽名算法，暫支持 MD5 $data['package'] = 'prepay_id=' . $unifiedOrder['prepay_id']; //統(tǒng)一下單接口返回的 prepay_id 參數(shù)值，提交格式如：prepay_id=* $data['paySign'] = $this->genPaySign($unifiedOrder, $time);// 之前以為是$unifiedOrder['sign']; 后來發(fā)現(xiàn)是調(diào)用的這種方法. 簽名方案參見微信公眾號支付幫助文檔; $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'] = '微信支付失敗';// $unifiedOrder['RETURN_MSG']; } $this->ajaxReturn($return); }

/* 生成支付簽名*/ 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)); }

/** * 支付回調(diào) * @author:大臉貓臉大 */ 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, true), Log::ERR, '', C('LOG_PATH')."wx_pay_notify_".date('y_m_d').'.log'); exit(''); } }

payNotify 回調(diào)方法里一定要注意返回

PHP 小程序

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版權(quán)聲明：本文內(nèi)容由網(wǎng)絡用戶投稿，版權(quán)歸原作者所有，本站不擁有其著作權(quán)，亦不承擔相應法律責任。如果您發(fā)現(xiàn)本站中有涉嫌抄襲或描述失實的內(nèi)容，請聯(lián)系我們jiasou666@gmail.com 處理，核實后本網(wǎng)站將在24小時內(nèi)刪除侵權(quán)內(nèi)容。