本文实例讲述了PHP小程序支付功能。分享给大家供大家参考,具体如下:

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 (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, $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));
    return $sign;
}
/**
* 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。

欢迎大家指正。

更多关于PHP相关内容感兴趣的读者可查看本站专题:《PHP微信开发技巧汇总》、《php curl用法总结》、《PHP网络编程技巧总结》、《php字符串(string)用法总结》、《PHP中json格式数据操作技巧汇总》及《PHP针对XML文件操作技巧总结》

希望本文所述对大家PHP程序设计有所帮助。

标签:
PHP,小程序,支付

免责声明:本站文章均来自网站采集或用户投稿,网站不提供任何软件下载或自行开发的软件! 如有用户或公司发现本站内容信息存在侵权行为,请邮件告知! 858582#qq.com
狼山资源网 Copyright www.pvsay.com

稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?