php充值支付程序,php实现小程序支付完整版

本文实例为大家分享了php实现小程序支付的具体代码&＃xff0c;供大家参考&＃xff0c;具体内容如下

环境&＃xff1a; tp3.2  &＃43; 小程序 微信支付功能开通

step1:下载php 支付sdk()  放到library\vendor下&＃xff0c;取名wxpay

修改wxpay.config.php 里的appid appsecret key mchid

step2:小程序 js 代码&＃xff1a;

var url &＃61; getapp().globaldata.httpserver &＃43; &＃39;api/buy/pay&＃39;;

var userid &＃61; getapp().globaldata.userid;

var totalmoney &＃61; this.data.totalmoney;

var cart &＃61; this.data.goods;

var param &＃61; {

cart: json.stringify(cart),

cartamount: totalmoney,

userid: userid,

payment: this.data.payment,

addressid: defaultaddress.id

};

var that &＃61; this;

util.http(url, param, function (ret) {

if (ret.data.code &＃61;&＃61; 1) {

if (that.data.payment &＃61;&＃61; &＃39;balance&＃39;) { // 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,

&＃39;success&＃39;: function (res) {

that.afterpaysuccess(ret.data.data.orderid);

},

&＃39;fail&＃39;: function (res) {

console.log(res);

}

})

}

} else {

util.showtip(ret.data.msg, &＃39;提交订单失败&＃39;);

}

});

/**

* 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&＃xff1a;

public function pay()

{

$cart &＃61; i(&＃39;cart&＃39;, &＃39;&＃39;, &＃39;trim&＃39;);

$cartamount &＃61; i(&＃39;cartamount&＃39;);

$addressid &＃61; i(&＃39;addressid&＃39;, 0, &＃39;intval&＃39;);

$payment &＃61; i(&＃39;payment&＃39;, &＃39;&＃39;, &＃39;trim&＃39;);

$userid &＃61; $this->userid;

$cart &＃61; json_decode($cart, true);

if (empty($cart)) {

$result[&＃39;msg&＃39;] &＃61; &＃39;购物车获取失败&＃39;;

$result[&＃39;code&＃39;] &＃61; 0;

$this->ajaxreturn($result);

}

$totalmoney &＃61; 0;

foreach ($cart as $goods) {

$money &＃61; $goods[&＃39;price&＃39;]; // price

$selectcount &＃61; $goods[&＃39;selectcount&＃39;]; // price

$itemamount &＃61; number_format($money * $selectcount, 2, &＃39;.&＃39;, &＃39;&＃39;);

$totalmoney &＃43;&＃61; $itemamount;

}

// 检查总金额是否一致

if ($totalmoney !&＃61; $cartamount) {

$result[&＃39;msg&＃39;] &＃61; &＃39;总金额不匹配:&＃39; . $totalmoney;

$result[&＃39;code&＃39;] &＃61; 0;

$this->ajaxreturn($result);

}

// 获取用户地址

$address &＃61; m(&＃39;memberaddress&＃39;)->where(&＃39;userid&＃61;&＃39; . $userid . " and id&＃61;" . $addressid)->find();

if (empty($address)) {

$result[&＃39;msg&＃39;] &＃61; &＃39;用户地址不存在&＃39;;

$result[&＃39;code&＃39;] &＃61; 0;

$this->ajaxreturn($result);

}

// 用户信息

$user &＃61; m(&＃39;member&＃39;)->where("id&＃61;" . $userid)->find();

if ($payment &＃61;&＃61; &＃39;balance&＃39;) {

if ($user[&＃39;amount&＃39;] <$cartamount) {

$result[&＃39;msg&＃39;] &＃61; &＃39;余额不足&＃39;;

$result[&＃39;code&＃39;] &＃61; 0;

$this->ajaxreturn($result);

}

}

// 生成订单

$order[&＃39;ordersn&＃39;] &＃61; $this->genordersn($user[&＃39;id&＃39;]);

$order[&＃39;price&＃39;] &＃61; $cartamount;

$order[&＃39;addressid&＃39;] &＃61; $address[&＃39;id&＃39;];

$order[&＃39;addressinfo&＃39;] &＃61; serialize($address); //json_encode($address);

$order[&＃39;longitude&＃39;] &＃61; $address[&＃39;longitude&＃39;];

$order[&＃39;latitude&＃39;] &＃61; $address[&＃39;latitude&＃39;];

$order[&＃39;addtime&＃39;] &＃61; time();

$order[&＃39;status&＃39;] &＃61; 0;

$order[&＃39;userid&＃39;] &＃61; $user[&＃39;id&＃39;];

$order[&＃39;paytype&＃39;] &＃61; $payment;

$order[&＃39;paysn&＃39;] &＃61; &＃39;&＃39;;

$order[&＃39;paytime&＃39;] &＃61; time();

$orderid &＃61; m("order")->add($order);

if ($orderid &＃61;&＃61; 0) {

$result[&＃39;msg&＃39;] &＃61; &＃39;创建订单失败&＃39;;

$result[&＃39;code&＃39;] &＃61; 0;

$this->ajaxreturn($result);

}

foreach ($cart as $goods) {

$ordergoods[&＃39;orderid&＃39;] &＃61; $orderid;

$ordergoods[&＃39;goodsid&＃39;] &＃61; $goods[&＃39;id&＃39;];

$ordergoods[&＃39;title&＃39;] &＃61; $goods[&＃39;title&＃39;];

$ordergoods[&＃39;price&＃39;] &＃61; $goods[&＃39;price&＃39;];

$ordergoods[&＃39;attr&＃39;] &＃61; $goods[&＃39;attr&＃39;];

$ordergoods[&＃39;pic&＃39;] &＃61; $goods[&＃39;pic&＃39;];

$ordergoods[&＃39;num&＃39;] &＃61; $goods[&＃39;selectcount&＃39;];

m("ordergoods")->add($ordergoods);

}

if ($payment &＃61;&＃61; &＃39;balance&＃39;) {

// 余额支付

$this->balancepay($cartamount, $user[&＃39;wxopenid&＃39;], $orderid);

} else if ($payment &＃61;&＃61; &＃39;weixin&＃39;) {

// 微信支付

$this->weixinpay($cartamount, $user[&＃39;wxopenid&＃39;], $orderid, $order[&＃39;ordersn&＃39;]);

}

}

/**

* 微信支付

* &＃64;author 大脸猫脸大

* &＃64;param $cart

* &＃64;param $cartamount

* &＃64;param $address

* &＃64;param $user

*/

private function weixinpay($cartamount, $openid, $orderid, $ordersn)

{

import("vendor.wxpay.lib.wxpay#api", "", ".php");

//订单号

$money &＃61; $cartamount * 100;

$openid &＃61; $openid;

$input &＃61; new \wxpayunifiedorder();

$input->setbody("迪克-商品");

$input->setout_trade_no("$ordersn");

$input->settotal_fee("$money");

$input->setnotify_url("https://" . $_server[&＃39;http_host&＃39;] . "/api/buy/paynotify");

$input->settrade_type("jsapi");

$input->setopenid($openid);

$unifiedorder &＃61; \wxpayapi::unifiedorder($input);

if ($unifiedorder[&＃39;result_code&＃39;] &＃61;&＃61; &＃39;success&＃39; && $unifiedorder[&＃39;return_code&＃39;] &＃61;&＃61; &＃39;success&＃39;) {

$time &＃61; time();

$data[&＃39;timestamp&＃39;] &＃61; "$time"; //时间戳

$data[&＃39;noncestr&＃39;] &＃61; $unifiedorder[&＃39;nonce_str&＃39;]; //随机字符串

$data[&＃39;signtype&＃39;] &＃61; &＃39;md5&＃39;; //签名算法&＃xff0c;暂支持 md5

$data[&＃39;package&＃39;] &＃61; &＃39;prepay_id&＃61;&＃39; . $unifiedorder[&＃39;prepay_id&＃39;]; //统一下单接口返回的 prepay_id 参数值&＃xff0c;提交格式如&＃xff1a;prepay_id&＃61;*

$data[&＃39;paysign&＃39;] &＃61; $this->genpaysign($unifiedorder, $time);// 之前以为是$unifiedorder[&＃39;sign&＃39;]; 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[&＃39;out_trade_no&＃39;] &＃61; $ordersn;

$data[&＃39;orderid&＃39;] &＃61; $orderid;

$return[&＃39;code&＃39;] &＃61; 1;

$return[&＃39;data&＃39;] &＃61; $data;

} else {

log::write(var_export($unifiedorder, true), log::err, &＃39;&＃39;, c(&＃39;log_path&＃39;)."wx_pay_".date(&＃39;y_m_d&＃39;).&＃39;.log&＃39;);

$return[&＃39;code&＃39;] &＃61; 0;

$return[&＃39;msg&＃39;] &＃61; &＃39;微信支付失败&＃39;;// $unifiedorder[&＃39;return_msg&＃39;];

}

$this->ajaxreturn($return);

}

/* 生成支付签名*/

private function genpaysign($unifiedorder, $time)

{

$appid &＃61; \wxpayconfig::appid;

$noncestr &＃61; $unifiedorder[&＃39;nonce_str&＃39;];

$package &＃61; &＃39;prepay_id&＃61;&＃39; . $unifiedorder[&＃39;prepay_id&＃39;];

$signtype &＃61; "md5";

$timestamp &＃61; $time;

$key &＃61; \wxpayconfig::key;

$sign &＃61; md5(sprintf("appid&＃61;%s&noncestr&＃61;%s&package&＃61;%s&signtype&＃61;%s×tamp&＃61;%s&key&＃61;%s", $appid, $noncestr, $package, $signtype, $timestamp, $key));

}

/**

* 支付回调

* &＃64;author:大脸猫脸大

*/

public function paynotify()

{

import("vendor.wxpay.lib.wxpay#data", "", ".php");

$xml &＃61; $globals[&＃39;http_raw_post_data&＃39;];

$val &＃61; \wxpayresults::init($xml);

if ($val[&＃39;result_code&＃39;] &＃61;&＃61; &＃39;success&＃39; && $val[&＃39;return_code&＃39;] &＃61;&＃61; &＃39;success&＃39;) {

$ordersn &＃61; $val[&＃39;out_trade_no&＃39;];

$transactionid &＃61; $val[&＃39;transaction_id&＃39;];

$data &＃61; array(&＃39;paytype&＃39; &＃61;> &＃39;weixin&＃39;, &＃39;status&＃39; &＃61;> &＃39;1&＃39;, &＃39;paytime&＃39; &＃61;> time(), &＃39;paysn&＃39; &＃61;> $transactionid);

m("order")->where("ordersn&＃61;&＃39;$ordersn&＃39;")->setfield($data);

exit(&＃39;&＃39;);

}else {

log::write(var_export($val, true), log::err, &＃39;&＃39;, c(&＃39;log_path&＃39;)."wx_pay_notify_".date(&＃39;y_m_d&＃39;).&＃39;.log&＃39;);

exit(&＃39;&＃39;);

}

}

paynotify 回调方法里一定要注意返回

如果不处理&＃xff0c;你会发现paynotify  会被执行很多次参见&＃xff1a;官方文档

总结一下&＃xff1a;

注意二点&＃xff0c;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&＃xff0c;希望对大家的学习有所帮助&＃xff0c;也希望大家多多支持萬仟网。

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