Le paiement par scan QR code est devenu une méthode de transaction populaire. Dans cet article, nous partageons principalement avec vous le code php pour mettre en ?uvre le paiement par scan QR code WeChat, dans l'espoir d'aider tout le monde.

1. Vous devez scanner le code QR pour payer avec WeChat,
fichier de paiement pay.php

<?phpinclude("../../../config/conn.php");//數(shù)據(jù)庫//sql先插入訂單到數(shù)據(jù)庫//讀取訂單號//$ddbh="測試訂單號";///直接訪問本頁面測試ini_set(&#39;date.timezone&#39;,&#39;Asia/Shanghai&#39;);$mchid = &#39;149651642&#39;;          //微信支付商戶$appid = &#39;wxc35486954de04f5&#39;;  //公眾號APPID $apiKey = &#39;6ac2b9ef5a7c1190&#39;;//設(shè)置API密鑰$wxPay = new WxpayService($mchid,$appid,$apiKey);$outTradeNo = $ddbh;     //你商城的商品訂單號$payAmount = 1;          //金額，單位:元$orderName = &#39;wxpay&#39;;    //訂單標(biāo)題$notifyUrl = weburl."notify.php";     //付款成功后的回調(diào)地址(不要有問號),可直接放根目錄$payTime = time(); 
$arr = $wxPay->createJsBizPackage($payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);//生成二維碼$url2 = $arr[&#39;code_url&#39;];//echo "<img src=&#39;{$url}&#39; style=&#39;width:300px;&#39;>";class WxpayService{
    protected $mchid;    protected $appid;    protected $apiKey;    public function __construct($mchid, $appid, $key)
    {
        $this->mchid = $mchid;        $this->appid = $appid;        $this->apiKey = $key;
    }    /**
     * 發(fā)起訂單
     * @param float $totalFee 收款總費(fèi)用 單位元
     * @param string $outTradeNo 唯一的訂單號
     * @param string $orderName 訂單名稱
     * @param string $notifyUrl 支付結(jié)果通知url 不要有問號
     * @param string $timestamp 訂單發(fā)起時間
     * @return array
     */
    public function createJsBizPackage($totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)
    {
        $config = array(            &#39;mch_id&#39; => $this->mchid,            &#39;appid&#39; => $this->appid,            &#39;key&#39; => $this->apiKey,
        );        //$orderName = iconv(&#39;GBK&#39;,&#39;UTF-8&#39;,$orderName);
        $unified = array(            &#39;appid&#39; => $config[&#39;appid&#39;],            &#39;attach&#39; => &#39;pay&#39;,             //商家數(shù)據(jù)包，原樣返回，如果填寫中文，請注意轉(zhuǎn)換為utf-8
            &#39;body&#39; => $orderName,            &#39;mch_id&#39; => $config[&#39;mch_id&#39;],            &#39;nonce_str&#39; => self::createNonceStr(),            &#39;notify_url&#39; => $notifyUrl,            &#39;out_trade_no&#39; => $outTradeNo,            &#39;spbill_create_ip&#39; => &#39;127.0.0.1&#39;,            &#39;total_fee&#39; => intval($totalFee * 100),       //單位 轉(zhuǎn)為分
            &#39;trade_type&#39; => &#39;NATIVE&#39;,
        );        $unified[&#39;sign&#39;] = self::getSign($unified, $config[&#39;key&#39;]);        $responseXml = self::curlPost(&#39;https://api.mch.weixin.qq.com/pay/unifiedorder&#39;, self::arrayToXml($unified));        $unifiedOrder = simplexml_load_string($responseXml, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);        if ($unifiedOrder === false) {            die(&#39;parse xml error&#39;);
        }        if ($unifiedOrder->return_code != &#39;SUCCESS&#39;) {            die($unifiedOrder->return_msg);
        }        if ($unifiedOrder->result_code != &#39;SUCCESS&#39;) {            die($unifiedOrder->err_code);
        }        $codeUrl = (array)($unifiedOrder->code_url);        if(!$codeUrl[0]) exit(&#39;get code_url error&#39;);        $arr = array(            "appId" => $config[&#39;appid&#39;],            "timeStamp" => $timestamp,            "nonceStr" => self::createNonceStr(),            "package" => "prepay_id=" . $unifiedOrder->prepay_id,            "signType" => &#39;MD5&#39;,            "code_url" => $codeUrl[0],
        );        $arr[&#39;paySign&#39;] = self::getSign($arr, $config[&#39;key&#39;]);        return $arr;
    }    public function notify()
    {
        $config = array(            &#39;mch_id&#39; => $this->mchid,            &#39;appid&#39; => $this->appid,            &#39;key&#39; => $this->apiKey,
        );        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];        $postObj = simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);        if ($postObj === false) {            die(&#39;parse xml error&#39;);
        }        if ($postObj->return_code != &#39;SUCCESS&#39;) {            die($postObj->return_msg);
        }        if ($postObj->result_code != &#39;SUCCESS&#39;) {            die($postObj->err_code);
        }        $arr = (array)$postObj;        unset($arr[&#39;sign&#39;]);        if (self::getSign($arr, $config[&#39;key&#39;]) == $postObj->sign) {            echo &#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;;            return $postObj;
        }
    }    /**
     * curl get
     *
     * @param string $url
     * @param array $options
     * @return mixed
     */
    public static function curlGet($url = &#39;&#39;, $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 = &#39;&#39;, $postData = &#39;&#39;, $options = array())
    {
        if (is_array($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 = &#39;abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&#39;;        $str = &#39;&#39;;        for ($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 $xml;
    }    /**
     * 獲取簽名
     */
    public static function getSign($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 . "&";
            }
        }        $reqPar = &#39;&#39;;        if (strlen($buff) > 0) {            $reqPar = substr($buff, 0, strlen($buff) - 1);
        }        return $reqPar;
    }
}?><html><head><meta http-equiv="content-type" content="text/html;charset=utf-8"/><meta name="viewport" content="width=device-width, initial-scale=1" /> <title><?=$g_webname?>微信支付</title><input type="hidden" id="wpay" value="<?php echo  $url2; ?>"/></head><body><img style="float:left;clear:both;margin:0 0 0 7px;" src="<?=weburl?>tem/getqr.php?u=<?=urlencode($url2)?>&size=9"/></body></html>

2.

Recommandations associées ：

<?phpinclude("../../../config/conn.php");

ini_set(&#39;date.timezone&#39;,&#39;Asia/Shanghai&#39;);
error_reporting(0);$mchid = &#39;149651542&#39;;          //微信支付商戶號$appid = &#39;wxc35486954de04f5&#39;;  //公眾號APPID$apiKey = &#39;6ac2b9e5&#39;;   //API密鑰$wxPay = new WxpayService($mchid,$appid,$apiKey);$result = $wxPay->notify();//file_put_contents(&#39;2.txt&#39;,json_encode($result));//測試結(jié)果//$result[&#39;transaction_id&#39;]為微信交易號 if($result){    if(array_key_exists("return_code", $result)
&& array_key_exists("result_code", $result)&& $result["return_code"] == "SUCCESS"&& $result["result_code"] == "SUCCESS"){    //file_put_contents(&#39;1.txt&#39;,1);$sj=date("Y-m-d H:i:s");$uip=$_SERVER["REMOTE_ADDR"];$sql="select * from yjcode_dingdang where bh=&#39;".$result[&#39;out_trade_no&#39;]."&#39; and ifok=0";mysql_query("SET NAMES &#39;GBK&#39;");$res=mysql_query($sql);if($row=mysql_fetch_array($res)){
 updatetable("yjcode_dingdang","sj=&#39;".$sj."&#39;,uip=&#39;".$uip."&#39;,alipayzt=&#39;TRADE_SUCCESS&#39;,ddzt=&#39;交易成功&#39;,ifok=1 ,wxddbh=".$result[&#39;transaction_id&#39;]." where id=".$row[id]); $money1=$row[&#39;money1&#39;];
 PointIntoM($row[&#39;userid&#39;],"微信充值".$money1."元",$money1);
 PointUpdateM($row[userid],$money1);
}            return true;
        }


}else{    echo &#39;pay error&#39;;
}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(            &#39;mch_id&#39; => $this->mchid,            &#39;appid&#39; => $this->appid,            &#39;key&#39; => $this->apiKey,
        );        $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];        $postObj = simplexml_load_string($postStr, &#39;SimpleXMLElement&#39;, LIBXML_NOCDATA);        if ($postObj === false) {            die(&#39;parse xml error&#39;);
        }        if ($postObj->return_code != &#39;SUCCESS&#39;) {            die($postObj->return_msg);
        }        if ($postObj->result_code != &#39;SUCCESS&#39;) {            die($postObj->err_code);
        }        $arr = (array)$postObj;        unset($arr[&#39;sign&#39;]);        if (self::getSign($arr, $config[&#39;key&#39;]) == $postObj->sign) {            echo &#39;<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>&#39;;            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 . "&";
            }
        }        $reqPar = &#39;&#39;;        if (strlen($buff) > 0) {            $reqPar = substr($buff, 0, strlen($buff) - 1);
        }        return $reqPar;
    }
}

nodejs implémente la fonction de paiement par numérisation de code WeChat

Après un paiement réussi via le code de numérisation WeChat sur le PC, il passera automatiquement à la version PHP pour le partage de code

Mode de paiement par code scan WeChat

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