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如何使用PHP開發(fā)微信公眾號(hào)文章付費(fèi)閱讀功能

發(fā)布時(shí)間:2020-09-08 10:58:50 來源:億速云 閱讀:282 作者:小新 欄目:編程語言

這篇文章將為大家詳細(xì)講解有關(guān)如何使用PHP開發(fā)微信公眾號(hào)文章付費(fèi)閱讀功能,小編覺得挺實(shí)用的,因此分享給大家做個(gè)參考,希望大家閱讀完這篇文章后可以有所收獲。

php開發(fā)微信公眾號(hào)文章付費(fèi)閱讀功能!

如何使用PHP開發(fā)微信公眾號(hào)文章付費(fèi)閱讀功能

如上圖,一看就懂,就是一片公眾號(hào)文章,點(diǎn)進(jìn)去顯示標(biāo)題,作者,時(shí)間,公眾號(hào)名稱和部分內(nèi)容,要想閱讀所有內(nèi)容,那就支付0.01元就可以閱讀所有的內(nèi)容,這就是付費(fèi)閱讀!??!當(dāng)然金額可以自定義....

其實(shí)這個(gè)開發(fā)原理很簡單,無非就是在文章頁面加一個(gè)微信支付的按鈕,點(diǎn)擊支付后把隱藏的部分給顯示出來或者直接跳轉(zhuǎn)到全文地址。

當(dāng)然了,這個(gè)文章界面也是模仿官方來寫的,你可以查看官方的樣式,然后模仿就可以了,這個(gè)沒啥難度。主要是加個(gè)按鈕在這個(gè)頁面,下面是這個(gè)頁面的代碼:

readpay.php

<?php
header('Content-type:text/html; Charset=utf-8');
$mchid = '微信支付商戶號(hào)';          //微信支付商戶號(hào)
$appid = '微信支付申請(qǐng)對(duì)應(yīng)的公眾號(hào)的APPID';  //微信支付申請(qǐng)對(duì)應(yīng)的公眾號(hào)的APPID
$appKey = '微信支付申請(qǐng)對(duì)應(yīng)的公眾號(hào)的APPSECRET';   //微信支付申請(qǐng)對(duì)應(yīng)的公眾號(hào)的APPSECRET
$apiKey = 'API密鑰';   //帳戶設(shè)置-安全設(shè)置-API安全-API密鑰-設(shè)置API密鑰
//①、獲取用戶openid
$wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey);
$openId = $wxPay->GetOpenid();      //獲取openid
if(!$openId) exit('獲取openid失敗');
//②、統(tǒng)一下單
$outTradeNo = uniqid();     //你自己的商品訂單號(hào)
$payAmount = 0.01;          //付款金額,單位:元
$orderName = 'test';    //訂單標(biāo)題
$notifyUrl = 'nofity.php';     //付款成功后的回調(diào)地址,一般放在本頁面的同級(jí)目錄即可
$payTime = time();      //付款時(shí)間
$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頁面-->
    <html>
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1"/>
        <title>新版微信支持雙開,王利芬慶?!懊┵┵┤ナ馈蔽拈喿x10w+被批人血饅頭</title>
        <script type="text/javascript">
            //調(diào)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"){
                            //支付成功跳轉(zhuǎn)頁面
                            window.location.href="這里填寫支付成功后要跳轉(zhuǎn)的查看全文文章地址";
                        }else{
                            //支付失敗/或取消支付跳轉(zhuǎn)頁面,自己自定義開發(fā)頁面
                            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頁面的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/>
    <!--文章標(biāo)題-->
    <h3 id="title">新版微信支持雙開,王利芬慶?!懊┵┵┤ナ馈蔽拈喿x10w+被批人血饅頭</h3>
    <div id="meta_content">
    <!--發(fā)布時(shí)間、作者、公眾號(hào)昵稱-->
       <span class="time">2018-01-27</span>   <span class="author">tanking</span>   <span class="name">里客云</span>
    </div>
    <!--顯示的部分內(nèi)容,未支付前顯示的內(nèi)容-->
    <div id="con">
        這一周,公眾號(hào)議論最多的有“周沖的影像聲色”因洗稿被撕、80后創(chuàng)業(yè)者茅侃侃去世、劉亦菲分手......幾乎每件事都能在朋友圈刷到相關(guān)報(bào)道。此外,視頻大號(hào)“一條”又拿到了新一輪融資,你最關(guān)心哪一件事呢?
    </div>
    <!--支付按鈕-->
    <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閱讀全文</button>
    </div>
    </body>
    </html>
    <!--下面是微信支付邏輯了-->
<?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 產(chǎn)品中心-開發(fā)配置-商戶號(hào)
        $this->appid = $appid; //微信支付申請(qǐng)對(duì)應(yīng)的公眾號(hào)的APPID
        $this->appKey = $appKey; //微信支付申請(qǐng)對(duì)應(yīng)的公眾號(hào)的APP Key
        $this->apiKey = $key;   //https://pay.weixin.qq.com 帳戶設(shè)置-安全設(shè)置-API安全-API密鑰-設(shè)置API密鑰
    }
    /**
     * 通過跳轉(zhuǎn)獲取用戶的openid,跳轉(zhuǎn)流程如下:
     * 1、設(shè)置自己需要調(diào)回的url及其其他參數(shù),跳轉(zhuǎn)到微信服務(wù)器https://open.weixin.qq.com/connect/oauth3/authorize
     * 2、微信服務(wù)處理完成之后會(huì)跳轉(zhuǎn)回用戶redirect_uri地址,此時(shí)會(huì)帶上一些參數(shù),如:code
     * @return 用戶的openid
     */
    public function GetOpenid()
    {
        //通過code獲得openid
        if (!isset($_GET['code'])){
            //觸發(fā)微信返回code碼
            $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 {
            //獲取code碼,以獲取openid
            $code = $_GET['code'];
            $openid = $this->getOpenidFromMp($code);
            return $openid;
        }
    }
    /**
     * 通過code從工作平臺(tái)獲取openid機(jī)器access_token
     * @param string $code 微信跳轉(zhuǎn)回來帶上的code
     * @return openid
     */
    public function GetOpenidFromMp($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;
    }
    /**
     * 構(gòu)造獲取open和access_toke的url地址
     * @param string $code,微信跳轉(zhuǎn)帶回的code
     * @return 請(qǐng)求的url
     */
    private function __CreateOauthUrlForOpenid($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/oauth3/access_token?".$bizString;
    }
    /**
     * 構(gòu)造獲取code的url連接
     * @param string $redirectUrl 微信服務(wù)器回跳的url,需要url編碼
     * @return 返回構(gòu)造好的url
     */
    private function __CreateOauthUrlForCode($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/oauth3/authorize?".$bizString;
    }
    /**
     * 拼接簽名字符串
     * @param array $urlObj
     * @return 返回已經(jīng)拼接好的字符串
     */
    private function ToUrlParams($urlObj)
    {
        $buff = "";
        foreach ($urlObj as $k => $v)
        {
            if($k != "sign") $buff .= $k . "=" . $v . "&";
        }
        $buff = trim($buff, "&");
        return $buff;
    }
    /**
     * 統(tǒng)一下單
     * @param string $openid 調(diào)用【網(wǎng)頁授權(quán)獲取用戶信息】接口獲取到用戶在該公眾號(hào)下的Openid
     * @param float $totalFee 收款總費(fèi)用 單位元
     * @param string $outTradeNo 唯一的訂單號(hào)
     * @param string $orderName 訂單名稱
     * @param string $notifyUrl 支付結(jié)果通知url 不要有問號(hào)
     * @param string $timestamp 支付時(shí)間
     * @return string
     */
    public function createJsBizPackage($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',             //商家數(shù)據(jù)包,原樣返回,如果填寫中文,請(qǐng)注意轉(zhuǎn)換為utf-8
            'body' => $orderName,
            'mch_id' => $config['mch_id'],
            'nonce_str' => self::createNonceStr(),
            'notify_url' => $notifyUrl,
            'openid' => $openid,            //rade_type=JSAPI,此參數(shù)必傳
            'out_trade_no' => $outTradeNo,
            'spbill_create_ip' => '127.0.0.1',
            'total_fee' => intval($totalFee * 100),       //單位 轉(zhuǎn)為分
            '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",        //這里是字符串的時(shí)間戳,不是int,所以需加引號(hào)
            "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, $options);
        }
        //https請(qǐng)求 不驗(yàn)證證書和host
        curl_setopt($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); //設(shè)置cURL允許執(zhí)行的最長秒數(shù)
        if (!empty($options)) {
            curl_setopt_array($ch, $options);
        }
        //https請(qǐng)求 不驗(yàn)證證書和host
        curl_setopt($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(掃碼支付)及公眾號(hào)支付的異步回調(diào)通知
 * 說明:需要在native.php或者jsapi.php中的填寫回調(diào)地址。例如:http://www.xxx.com/wx/notify.php
 * 付款成功后,微信服務(wù)器會(huì)將付款結(jié)果通知到該頁面
 */
header('Content-type:text/html; Charset=utf-8');
$mchid = '微信支付商戶號(hào)';
$appid = '公眾號(hào)APPID'; 
$apiKey = 'API密鑰'; 
$wxPay = new WxpayService($mchid,$appid,$apiKey);
$result = $wxPay->notify();
if($result){
    //完成你的邏輯
    //例如連接數(shù)據(jù)庫,獲取付款金額$result['cash_fee'],獲取訂單號(hào)$result['out_trade_no'],修改數(shù)據(jù)庫中的訂單狀態(tài)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 $arr;
        }
    }
    /**
     * 獲取簽名
     */
    public static function getSign($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;
    }
}

簡單說明:

1、新建readpay.php,拷貝上面的代碼,修改商戶號(hào)、appid、appsecret、密鑰即可,還有下面的回調(diào)地址的路徑(nofity.php),至于支付成功和支付失敗跳轉(zhuǎn)的頁面按自己的需求修改即可。

支付金額、文章標(biāo)題】時(shí)間、作者、公賬號(hào)名稱等根據(jù)自己的需求修改。

要注意,訂單標(biāo)題不能為中文,否則會(huì)提示body參數(shù)錯(cuò)誤什么的。

2、新建nofity.php

把上面的代碼拷貝上去,修改商戶號(hào)、appid、密鑰即可。

上傳到支付授權(quán)目錄,然后訪問readpay.php頁面測(cè)試。

3、新建false.html,這個(gè)是支付失敗的頁面,至于支付失敗要顯示什么或者輸出什么,這個(gè)根據(jù)你的業(yè)務(wù)來自定義開發(fā)。

關(guān)于如何使用PHP開發(fā)微信公眾號(hào)文章付費(fèi)閱讀功能就分享到這里了,希望以上內(nèi)容可以對(duì)大家有一定的幫助,可以學(xué)到更多知識(shí)。如果覺得文章不錯(cuò),可以把它分享出去讓更多的人看到。

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