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教你用PHP开发微信公众号文章付费阅读功能

作者:星凤网 点击:770发布时间: 2021-04-15

推荐:《PHP视频教程》

php开发微信公众号文章付费阅读功能!

如上图,一看就懂,就是一片公众号文章,点进去显示标题,作者,时间,公众号名称和部分内容,要想阅读所有内容,那就支付0.01元就可以阅读所有的内容,这就是付费阅读!!!当然金额可以自定义….

其实这个开发原理很简单,无非就是在文章页面加一个微信支付的按钮,点击支付后把隐藏的部分给显示出来或者直接跳转到全文地址。

当然了,这个文章界面也是模仿官方来写的,你可以查看官方的样式,然后模仿就可以了,这个没啥难度。主要是加个按钮在这个页面,下面是这个页面的代码:

readpay.php

<?php header('Content-type:text/html; Charset=utf-8'); $mchid = '微信支付商户号';          //微信支付商户号 $appid = '微信支付申请对应的公众号的APPID';  //微信支付申请对应的公众号的APPID $appKey = '微信支付申请对应的公众号的APPSECRET';   //微信支付申请对应的公众号的APPSECRET $apiKey = 'API密钥';   //帐户设置-安全设置-API安全-API密钥-设置API密钥 //①、获取用户openid $wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey); $openId = $wxPay->GetOpenid();      //获取openid if(!$openId) exit('获取openid失败'); //②、统一下单 $outTradeNo = uniqid();     //你自己的商品订单号 $payAmount = 0.01;          //付款金额,单位:元 $orderName = 'test';    //订单标题 $notifyUrl = 'nofity.php';     //付款成功后的回调地址,一般放在本页面的同级目录即可 $payTime = time();      //付款时间 $jsApiParameters = $wxPay->createJsBizPackage($openId,$payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime); $jsApiParameters = json_encode($jsApiParameters); ?>       <!--下面就是木方官方微信文章页面-->     <html>     <head>         <meta charset="utf-8">         <meta name="viewport" content="width=device-width, initial-scale=1"/>         <title>新版微信支持双开,王利芬庆祝“茅侃侃去世”文阅读10w+被批人血馒头</title>         <script type="text/javascript">             //调用微信JS api 支付             function jsApiCall()             {                 WeixinJSBridge.invoke(                     'getBrandWCPayRequest',                     <?php echo $jsApiParameters; ?>,                     function(res){                         WeixinJSBridge.log(res.err_msg);                         //alert(res.err_code+res.err_desc+res.err_msg);                         if(res.err_msg == "get_brand_wcpay_request:ok"){                             //支付成功跳转页面                             window.location.href="这里填写支付成功后要跳转的查看全文文章地址";                         }else{                             //支付失败/或取消支付跳转页面,自己自定义开发页面                             window.location.href="false.html";                         }                     }                 );             }             function callpay()             {                 if (typeof WeixinJSBridge == "undefined"){                     if( document.addEventListener ){                         document.addEventListener('WeixinJSBridgeReady', jsApiCall, false);                     }else if (document.attachEvent){                         document.attachEvent('WeixinJSBridgeReady', jsApiCall);                         document.attachEvent('onWeixinJSBridgeReady', jsApiCall);                     }                 }else{                     jsApiCall();                 }             }         </script>         <!--下面就是木方官方微信文章页面的CSS-->         <style>             #title{                    margin-bottom:10px;                    line-height:1.4;                    font-weight:400;                    font-size:24px;                    width: 97%;                    margin:0 auto;             }                          #meta_content .time{                 color: #8C8C8C;                 font-family: "SimHei";             }               .author{                 color: #8C8C8C;                 font-family: "SimHei";             }               .name{                 color: #607fa6;             }               #con{                 width:95%;                 font-size: 15px;                 margin:15px auto 25px;                 color: #595757;             }         </style>     </head>     <body>     <br/>     <!--文章标题-->     <h2 id="title">新版微信支持双开,王利芬庆祝“茅侃侃去世”文阅读10w+被批人血馒头</h2>     <div id="meta_content">     <!--发布时间、作者、公众号昵称-->        <span class="time">2018-01-27</span>   <span class="author">tanking</span>   <span class="name">里客云</span>     </div>     <!--显示的部分内容,未支付前显示的内容-->     <div id="con">         这一周,公众号议论最多的有“周冲的影像声色”因洗稿被撕、80后创业者茅侃侃去世、刘亦菲分手......几乎每件事都能在朋友圈刷到相关报道。此外,视频大号“一条”又拿到了新一轮融资,你最关心哪一件事呢?     </div>     <!--支付按钮-->     <div align="center">         <button style="width:180px; height:35px;background: none; border-radius: 5px;border:1px #1AAD19 solid; cursor: pointer;  color:#1AAD19;  font-size:15px;-webkit-tap-highlight-color:rgba(255,0,0,0);" type="button" οnclick="callpay()" >支付0.01阅读全文</button>     </div>     </body>     </html>     <!--下面是微信支付逻辑了--> <?php header("Content-Type:text/html; charset=utf-8"); class WxpayService {     protected $mchid;     protected $appid;     protected $appKey;     protected $apiKey;     public $data = null;     public function __construct($mchid, $appid, $appKey,$key)     {         $this->mchid = $mchid; //https://pay.weixin.qq.com 产品中心-开发配置-商户号         $this->appid = $appid; //微信支付申请对应的公众号的APPID         $this->appKey = $appKey; //微信支付申请对应的公众号的APP Key         $this->apiKey = $key;   //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥     }     /**      * 通过跳转获取用户的openid,跳转流程如下:      * 1、设置自己需要调回的url及其其他参数,跳转到微信服务器https://open.weixin.qq.com/connect/oauth2/authorize      * 2、微信服务处理完成之后会跳转回用户redirect_uri地址,此时会带上一些参数,如:code      * @return 用户的openid      */     public function GetOpenid()     {         //通过code获得openid         if (!isset($_GET['code'])){             //触发微信返回code码             $scheme = $_SERVER['HTTPS']=='on' ? 'https://' : 'http://';             $baseUrl = urlencode($scheme.$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF'].$_SERVER['QUERY_STRING']);             $url = $this->__CreateOauthUrlForCode($baseUrl);             Header("Location: $url");             exit();         } else {             //获取code码,以获取openid             $code = $_GET['code'];             $openid = $this->getOpenidFromMp($code);             return $openid;         }     }     /**      * 通过code从工作平台获取openid机器access_token      * @param string $code 微信跳转回来带上的code      * @return openid      */     public function GetOpenidFromMp($code)     {         $url = $this->__CreateOauthUrlForOpenid($code);         $res = self::curlGet($url);         //取出openid         $data = json_decode($res,true);         $this->data = $data;         $openid = $data['openid'];         return $openid;     }     /**      * 构造获取open和access_toke的url地址      * @param string $code,微信跳转带回的code      * @return 请求的url      */     private function __CreateOauthUrlForOpenid($code)     {         $urlObj["appid"] = $this->appid;         $urlObj["secret"] = $this->appKey;         $urlObj["code"] = $code;         $urlObj["grant_type"] = "authorization_code";         $bizString = $this->ToUrlParams($urlObj);         return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString;     }     /**      * 构造获取code的url连接      * @param string $redirectUrl 微信服务器回跳的url,需要url编码      * @return 返回构造好的url      */     private function __CreateOauthUrlForCode($redirectUrl)     {         $urlObj["appid"] = $this->appid;         $urlObj["redirect_uri"] = "$redirectUrl";         $urlObj["response_type"] = "code";         $urlObj["scope"] = "snsapi_base";         $urlObj["state"] = "STATE"."#wechat_redirect";         $bizString = $this->ToUrlParams($urlObj);         return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString;     }     /**      * 拼接签名字符串      * @param array $urlObj      * @return 返回已经拼接好的字符串      */     private function ToUrlParams($urlObj)     {         $buff = "";         foreach ($urlObj as $k => $v)         {             if($k != "sign") $buff .= $k . "=" . $v . "&";         }         $buff = trim($buff, "&");         return $buff;     }     /**      * 统一下单      * @param string $openid 调用【网页授权获取用户信息】接口获取到用户在该公众号下的Openid      * @param float $totalFee 收款总费用 单位元      * @param string $outTradeNo 唯一的订单号      * @param string $orderName 订单名称      * @param string $notifyUrl 支付结果通知url 不要有问号      * @param string $timestamp 支付时间      * @return string      */     public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)     {         $config = array(             'mch_id' => $this->mchid,             'appid' => $this->appid,             'key' => $this->apiKey,         );         $orderName = iconv('GBK','UTF-8',$orderName);         $unified = array(             'appid' => $config['appid'],             'attach' => 'pay',             //商家数据包,原样返回,如果填写中文,请注意转换为utf-8             'body' => $orderName,             'mch_id' => $config['mch_id'],             'nonce_str' => self::createNonceStr(),             'notify_url' => $notifyUrl,             'openid' => $openid,            //rade_type=JSAPI,此参数必传             'out_trade_no' => $outTradeNo,             'spbill_create_ip' => '127.0.0.1',             'total_fee' => intval($totalFee * 100),       //单位 转为分             'trade_type' => 'JSAPI',         );         $unified['sign'] = self::getSign($unified, $config['key']);         $responseXml = self::curlPost('https://api.mch.weixin.qq.com/pay/unifiedorder', self::arrayToXml($unified));         $unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);         if ($unifiedOrder === false) {             die('parse xml error');         }         if ($unifiedOrder->return_code != 'SUCCESS') {             die($unifiedOrder->return_msg);         }         if ($unifiedOrder->result_code != 'SUCCESS') {             die($unifiedOrder->err_code);         }         $arr = array(             "appId" => $config['appid'],             "timeStamp" => "$timestamp",        //这里是字符串的时间戳,不是int,所以需加引号             "nonceStr" => self::createNonceStr(),             "package" => "prepay_id=" . $unifiedOrder->prepay_id,             "signType" => 'MD5',         );         $arr['paySign'] = self::getSign($arr, $config['key']);         return $arr;     }     public static function curlGet($url = '', $options = array())     {         $ch = curl_init($url);         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);         curl_setopt($ch, CURLOPT_TIMEOUT, 30);         if (!empty($options)) {             curl_setopt_array($ch, $options);         }         //https请求 不验证证书和host         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);         $data = curl_exec($ch);         curl_close($ch);         return $data;     }     public static function curlPost($url = '', $postData = '', $options = array())     {         if (is_array($postData)) {             $postData = http_build_query($postData);         }         $ch = curl_init();         curl_setopt($ch, CURLOPT_URL, $url);         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);         curl_setopt($ch, CURLOPT_POST, 1);         curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);         curl_setopt($ch, CURLOPT_TIMEOUT, 30); //设置cURL允许执行的最长秒数         if (!empty($options)) {             curl_setopt_array($ch, $options);         }         //https请求 不验证证书和host         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);         $data = curl_exec($ch);         curl_close($ch);         return $data;     }     public static function createNonceStr($length = 16)     {         $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';         $str = '';         for ($i = 0; $i < $length; $i++) {             $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);         }         return $str;     }     public static function arrayToXml($arr)     {         $xml = "<xml>";         foreach ($arr as $key => $val) {             if (is_numeric($val)) {                 $xml .= "<" . $key . ">" . $val . "</" . $key . ">";             } else                 $xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";         }         $xml .= "</xml>";         return $xml;     }     public static function getSign($params, $key)     {         ksort($params, SORT_STRING);         $unSignParaString = self::formatQueryParaMap($params, false);         $signStr = strtoupper(md5($unSignParaString . "&key=" . $key));         return $signStr;     }     protected static function formatQueryParaMap($paraMap, $urlEncode = false)     {         $buff = "";         ksort($paraMap);         foreach ($paraMap as $k => $v) {             if (null != $v && "null" != $v) {                 if ($urlEncode) {                     $v = urlencode($v);                 }                 $buff .= $k . "=" . $v . "&";             }         }         $reqPar = '';         if (strlen($buff) > 0) {             $reqPar = substr($buff, 0, strlen($buff) - 1);         }         return $reqPar;     } } ?>

nofity.php

<?php /**  * 原生支付(扫码支付)及公众号支付的异步回调通知  * 说明:需要在native.php或者jsapi.php中的填写回调地址。例如:http://www.xxx.com/wx/notify.php  * 付款成功后,微信服务器会将付款结果通知到该页面  */ header('Content-type:text/html; Charset=utf-8'); $mchid = '微信支付商户号'; $appid = '公众号APPID';  $apiKey = 'API密钥';  $wxPay = new WxpayService($mchid,$appid,$apiKey); $result = $wxPay->notify(); if($result){     //完成你的逻辑     //例如连接数据库,获取付款金额$result['cash_fee'],获取订单号$result['out_trade_no'],修改数据库中的订单状态等; }else{     echo 'pay error'; } class WxpayService {     protected $mchid;     protected $appid;     protected $apiKey;     public function __construct($mchid, $appid, $key)     {         $this->mchid = $mchid;         $this->appid = $appid;         $this->apiKey = $key;     }     public function notify()     {         $config = array(             'mch_id' => $this->mchid,             'appid' => $this->appid,             'key' => $this->apiKey,         );         $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];         $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);         if ($postObj === false) {             die('parse xml error');         }         if ($postObj->return_code != 'SUCCESS') {             die($postObj->return_msg);         }         if ($postObj->result_code != 'SUCCESS') {             die($postObj->err_code);         }         $arr = (array)$postObj;         unset($arr['sign']);         if (self::getSign($arr, $config['key']) == $postObj->sign) {             echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';             return $arr;         }     }     /**      * 获取签名      */     public static function getSign($params, $key)     {         ksort($params, SORT_STRING);         $unSignParaString = self::formatQueryParaMap($params, false);         $signStr = strtoupper(md5($unSignParaString . "&key=" . $key));         return $signStr;     }     protected static function formatQueryParaMap($paraMap, $urlEncode = false)     {         $buff = "";         ksort($paraMap);         foreach ($paraMap as $k => $v) {             if (null != $v && "null" != $v) {                 if ($urlEncode) {                     $v = urlencode($v);                 }                 $buff .= $k . "=" . $v . "&";             }         }         $reqPar = '';         if (strlen($buff) > 0) {             $reqPar = substr($buff, 0, strlen($buff) - 1);         }         return $reqPar;     } }

简单说明:

1、新建readpay.php,拷贝上面的代码,修改商户号、appid、appsecret、密钥即可,还有下面的回调地址的路径(nofity.php),至于支付成功和支付失败跳转的页面按自己的需求修改即可。

支付金额、文章标题】时间、作者、公账号名称等根据自己的需求修改。

要注意,订单标题不能为中文,否则会提示body参数错误什么的。

2、新建nofity.php

把上面的代码拷贝上去,修改商户号、appid、密钥即可。

上传到支付授权目录,然后访问readpay.php页面测试。

3、新建false.html,这个是支付失败的页面,至于支付失败要显示什么或者输出什么,这个根据你的业务来自定义开发。

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