实现微信扫码支付php代码分享

扫码支付已经成为交易的一种流行方式，本文我们主要和大家分享实现微信扫码支付php代码，希望能帮助到大家。

一.需要用微信扫码付款,
支付文件pay.php

<?phpinclude("../../../config/conn.php");//数据库//sql先插入订单到数据库//读取订单号//$ddbh="测试订单号";///直接访问本页面测试ini_set(&#39;date.timezone&#39;,&#39;Asia/Shanghai&#39;);$mchid = &#39;149651642&#39;;          //微信支付商户$appid = &#39;wxc35486954de04f5&#39;;  //公众号APPID $apiKey = &#39;6ac2b9ef5a7c1190&#39;;//设置API密钥$wxPay = new WxpayService($mchid,$appid,$apiKey);$outTradeNo = $ddbh;     //你商城的商品订单号$payAmount = 1;          //金额，单位:元$orderName = &#39;wxpay&#39;;    //订单标题$notifyUrl = weburl."notify.php";     //付款成功后的回调地址(不要有问号),可直接放根目录$payTime = time(); 
$arr = $wxPay->createJsBizPackage($payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);//生成二维码$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;
    }    /**
     * 发起订单
     * @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 $timestamp 订单发起时间
     * @return array
     */
    public function createJsBizPackage($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;,             //商家数据包，原样返回，如果填写中文，请注意转换为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),       //单位 转为分
            &#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 = &#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); //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 = &#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 $xml;
    }    /**
     * 获取签名
     */
    public static function getSign($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 . "&";
            }
        }        $reqPar = &#39;&#39;;        if (strlen($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>

二,回调文件notify.php

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

ini_set(&#39;date.timezone&#39;,&#39;Asia/Shanghai&#39;);
error_reporting(0);$mchid = &#39;149651542&#39;;          //微信支付商户号$appid = &#39;wxc35486954de04f5&#39;;  //公众号APPID$apiKey = &#39;6ac2b9e5&#39;;   //API密钥$wxPay = new WxpayService($mchid,$appid,$apiKey);$result = $wxPay->notify();//file_put_contents(&#39;2.txt&#39;,json_encode($result));//测试结果//$result[&#39;transaction_id&#39;]为微信交易号 if($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 $arr;
        }
    }    /**
     * 获取签名
     */
    public static function getSign($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 . "&";
            }
        }        $reqPar = &#39;&#39;;        if (strlen($buff) > 0) {            $reqPar = substr($buff, 0, strlen($buff) - 1);
        }        return $reqPar;
    }
}

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