付费内容 微信支付-公众号支付(jsapi)PHP

微信支付-公众号支付(jsapi)PHP

时间:2025-08-02 10:46:19 分类:其他
<?php
header('Content-type:text/html; Charset=utf-8');
$mchid = '商户号';          //微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送
$appid = 'APPID';  //微信支付申请对应的公众号的APPID
$appKey = '公众号的APP Key';   //微信支付申请对应的公众号的APP Key
$apiKey = 'API密钥';   //https://pay.weixin.qq.com 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 = '支付测试';    //订单标题
$notifyUrl = 'https://www.xxx.com/wx/notify.php';     //付款成功后的回调地址(不要有问号)
$payTime = time();      //付款时间
$jsApiParameters = $wxPay->createJsBizPackage($openId,$payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);
$jsApiParameters = json_encode($jsApiParameters);
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>微信支付 - <?php echo $orderName; ?></title>
    <style>
        /* 加载提示样式 */
        .loading-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: white;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            font-size: 18px;
            color: #666;
        }
        
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            padding: 20px;
            margin: 0;
            display: none; /* 初始隐藏,加载完成后再显示 */
        }
        .payment-container {
            max-width: 500px;
            margin: 20px auto;
            background: white;
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
        }
        .payment-header {
            text-align: center;
            margin-bottom: 30px;
        }
        .payment-header h3 {
            color: #333;
            font-weight: 600;
            margin: 15px 0 5px;
        }
        .payment-amount {
            text-align: center;
            margin: 30px 0;
        }
        .amount-number {
            font-size: 48px;
            font-weight: 700;
            color: #FF5722;
        }
        .amount-unit {
            font-size: 18px;
            color: #666;
        }
        .payment-details {
            margin: 25px 0;
            padding: 15px;
            background: #f9f9f9;
            border-radius: 8px;
        }
        .detail-item {
            display: flex;
            justify-content: space-between;
            margin-bottom: 10px;
        }
        .detail-label {
            color: #666;
        }
        .detail-value {
            font-weight: 500;
        }
        .payment-button {
            width: 100%;
            padding: 12px;
            font-size: 16px;
            font-weight: 500;
            border-radius: 25px;
            background: #07C160;
            border: none;
            transition: all 0.3s;
            color: white;
            cursor: pointer;
        }
        .payment-button:hover {
            background: #06AD56;
            transform: translateY(-2px);
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        }
        .payment-button:active {
            transform: translateY(0);
        }
        .payment-footer {
            text-align: center;
            margin-top: 20px;
            color: #999;
            font-size: 12px;
        }
        .logo {
            width: 60px;
            height: 60px;
            margin: 0 auto;
            display: block;
            fill: #07C160;
        }
    </style>
</head>
<body>
    <!-- 加载提示 -->
    <div id="loadingOverlay">
        程序演示加载中,请稍候...
    </div>
    
    <!-- 支付内容 -->
    <div>
        <div>
            <svg viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg">
                <path d="M512 64C264.6 64 64 264.6 64 512s200.6 448 448 448 448-200.6 448-448S759.4 64 512 64zm167 633.6C638.4 735 583 757 516.9 757c-95.7 0-178.5-54.9-218.8-134.9C281.5 589 272 551.6 272 512s9.5-77 26.1-110.1c40.3-80.1 123.1-135 218.8-135 66 0 121.4 24.3 163.9 63.8L610.6 401c-25.4-24.3-57.7-36.6-93.6-36.6-63.8 0-117.8 43.1-136 101.4-4.6 14.6-7 30.1-7 46.2s2.4 31.6 7 46.2c18.1 58.3 72.1 101.4 136 101.4 35.9 0 68.2-12.3 93.6-36.6l26.1-26.1H516.9v-62.8h230.7c3.3 12.8 5.2 26 5.2 39.5.1 103.6-65.2 192.2-151.8 224.1z"/>
            </svg>
            <h3><?php echo $orderName; ?></h3>
        </div>
        
        <div>
            <span><?php echo $payAmount; ?></span>
            <span>元</span>
        </div>
        
        <div>
            <div>
                <span>订单编号</span>
                <span><?php echo $outTradeNo; ?></span>
            </div>
            <div>
                <span>支付方式</span>
                <span>微信支付</span>
            </div>
            <div>
                <span>支付时间</span>
                <span><?php echo date('Y-m-d H:i:s', $payTime); ?></span>
            </div>
        </div>
        
        <button onclick="callpay()">立即支付</button>
        
        <div>
            请在新打开的页面完成支付
        </div>
    </div>

    <script type="text/javascript">
        // 页面加载完成后显示内容
        window.onload = function() {
            // 隐藏加载提示
            document.getElementById('loadingOverlay').style.display = 'none';
            // 显示页面内容
            document.body.style.display = 'block';
        };
        
        //调用微信JS api 支付
        function jsApiCall() {
            WeixinJSBridge.invoke(
                'getBrandWCPayRequest',
                <?php echo $jsApiParameters; ?>,
                function(res) {
                    WeixinJSBridge.log(res.err_msg);
                    if(res.err_msg == 'get_brand_wcpay_request:ok') {
                        alert('支付成功!');
                    } else {
                        alert('支付失败:' + res.err_code + res.err_desc + res.err_msg);
                    }
                }
            );
        }
        
        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>
</body>
</html>

<?php
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://';
            $uri = $_SERVER['PHP_SELF'].$_SERVER['QUERY_STRING'];
            if($_SERVER['REQUEST_URI']) $uri = $_SERVER['REQUEST_URI'];
            $baseUrl = urlencode($scheme.$_SERVER['HTTP_HOST'].$uri);
            $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' => $outTradeNo,
            'spbill_create_ip' => '127.0.0.1',
            'total_fee' => floatval($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));
        //禁止引用外部xml实体
        libxml_disable_entity_loader(true);        
        $unifiedOrder = simplexml_load_string($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;
    }
}


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