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：
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：
?
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
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：
?
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
|
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。
希望本文所述对大家PHP程序设计有所帮助。
相关文章
猜你喜欢
- 个人服务器网站搭建：如何选择合适的服务器提供商？ 2025-06-10
- ASP.NET自助建站系统中如何实现多语言支持？ 2025-06-10
- 64M VPS建站：如何选择最适合的网站建设平台？ 2025-06-10
- ASP.NET本地开发时常见的配置错误及解决方法？ 2025-06-10
- ASP.NET自助建站系统的数据库备份与恢复操作指南 2025-06-10
