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PHP 微信支付类 demo

发布时间:2022-06-21 09:24:13 所属栏目:PHP教程 来源:互联网
导读:这篇文章主要介绍了PHP 微信支付类 demo的相关资料,需要的朋友可以参考下,一切尽在代码中,代码附有注释,欢迎大家参考。 ?php class WxpayService { protected $mchid; protected $appid; protected $key; public function __construct($mchid, $appid, $k
  这篇文章主要介绍了PHP 微信支付类 demo的相关资料,需要的朋友可以参考下,一切尽在代码中,代码附有注释,欢迎大家参考。
 
  <?php
  class WxpayService
  {
    protected $mchid;
    protected $appid;
    protected $key;
    public function __construct($mchid, $appid, $key)
    {
      $this->mchid = $mchid; // 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
      $this->appid = $appid; //公众号APPID 通过微信支付商户资料审核后邮件发送
      $this->key = $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
    }
    /**
     * @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 $notifyUrl 支付结果通知url 不要有问号
     *   https://mp.weixin.qq.com/ 微信支付-开发配置-测试目录
     *   测试目录 http://mp.izhanlue.com/paytest/  最后需要斜线,(需要精确到二级或三级目录)
     * @return string
     */
    public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp)
    {
      $config = array(
        'mch_id' => $this->mchid,
        'appid' => $this->appid,
        'key' => $this->key,
      );
      $unified = array(
        'appid' => $config['appid'],
        'attach' => '支付',             //商家数据包,原样返回
        '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));
      /*
      <xml>
      <return_code><![CDATA[SUCCESS]]></return_code>
      <return_msg><![CDATA[OK]]></return_msg>
      <appid><![CDATA[wx00e5904efec77699]]></appid>
      <mch_id><![CDATA[1220647301]]></mch_id>
      <nonce_str><![CDATA[1LHBROsdmqfXoWQR]]></nonce_str>
      <sign><![CDATA[ACA7BC8A9164D1FBED06C7DFC13EC839]]></sign>
      <result_code><![CDATA[SUCCESS]]></result_code>
      <prepay_id><![CDATA[wx2015032016590503f1bcd9c30421762652]]></prepay_id>
      <trade_type><![CDATA[JSAPI]]></trade_type>
      </xml>
      */
      $unifiedOrder = simplexml_load_string($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($unifiedOrder->err_code);
        /*
        NOAUTH 商户无此接口权限
        NOTENOUGH 余额不足
        ORDERPAID 商户订单已支付
        ORDERCLOSED 订单已关闭
        SYSTEMERROR 系统错误
        APPID_NOT_EXIST   APPID不存在
        MCHID_NOT_EXIST MCHID不存在
        APPID_MCHID_NOT_MATCH appid和mch_id不匹配
        LACK_PARAMS 缺少参数
        OUT_TRADE_NO_USED 商户订单号重复
        SIGNERROR 签名错误
        XML_FORMAT_ERROR XML格式错误
        REQUIRE_POST_METHOD 请使用post方法
        POST_DATA_EMPTY post数据为空
        NOT_UTF8 编码格式错误
        */
      }
      //$unifiedOrder->trade_type 交易类型 调用接口提交的交易类型,取值如下:JSAPI,NATIVE,APP
      //$unifiedOrder->prepay_id 预支付交易会话标识 微信生成的预支付回话标识,用于后续接口调用中使用,该值有效期为2小时
      //$unifiedOrder->code_url 二维码链接 trade_type为NATIVE是有返回,可将该参数值生成二维码展示出来进行扫码支付
      $arr = array(
        "appId" => $config['appid'],
        "timeStamp" => $timestamp,
        "nonceStr" => self::createNonceStr(),
        "package" => "prepay_id=" . $unifiedOrder->prepay_id,
        "signType" => 'MD5',
      );
      $arr['paySign'] = self::getSign($arr, $config['key']);
      return $arr;
    }
    public function notify()
    {
      $config = array(
        'mch_id' => $this->mchid,
        'appid' => $this->appid,
        'key' => $this->key,
      );
      $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
      //error_log($postStr, 3, './str.txt');
      /*
      $postStr = '<xml>
      <appid><![CDATA[wx00e5904efec77699]]></appid>
      <attach><![CDATA[支付测试]]></attach>
      <bank_type><![CDATA[CMB_CREDIT]]></bank_type>
      <cash_fee><![CDATA[1]]></cash_fee>
      <fee_type><![CDATA[CNY]]></fee_type>
      <is_subscribe><![CDATA[Y]]></is_subscribe>
      <mch_id><![CDATA[1220647301]]></mch_id>
      <nonce_str><![CDATA[a0tZ41phiHm8zfmO]]></nonce_str>
      <openid><![CDATA[oU3OCt5O46PumN7IE87WcoYZY9r0]]></openid>
      <out_trade_no><![CDATA[550bf2990c51f]]></out_trade_no>
      <result_code><![CDATA[SUCCESS]]></result_code>
      <return_code><![CDATA[SUCCESS]]></return_code>
      <sign><![CDATA[F6F519B4DD8DB978040F8C866C1E6250]]></sign>
      <time_end><![CDATA[20150320181606]]></time_end>
      <total_fee>1</total_fee>
      <trade_type><![CDATA[JSAPI]]></trade_type>
      <transaction_id><![CDATA[1008840847201503200034663980]]></transaction_id>
      </xml>';
      */
      $postObj = simplexml_load_string($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) {
        // $mch_id = $postObj->mch_id; //微信支付分配的商户号
        // $appid = $postObj->appid; //微信分配的公众账号ID
        // $openid = $postObj->openid; //用户在商户appid下的唯一标识
        // $transaction_id = $postObj->transaction_id;//微信支付订单号
        // $out_trade_no = $postObj->out_trade_no;//商户订单号
        // $total_fee = $postObj->total_fee; //订单总金额,单位为分
        // $is_subscribe = $postObj->is_subscribe; //用户是否关注公众账号,Y-关注,N-未关注,仅在公众账号类型支付有效
        // $attach = $postObj->attach;//商家数据包,原样返回
        // $time_end = $postObj->time_end;//支付完成时间
        echo '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';
        return $postObj;
      }
    }
    /**
     * curl get
     *
     * @param string $url
     * @param array $options
     * @return mixed
     */
    public static function curlGet($url = '', $options = array())
    {
      $ch = curl_init($url);
      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
      curl_setopt($ch, CURLOPT_TIMEOUT, 30);
      if (!emptyempty($options)) {
        curl_setopt_array($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 (!emptyempty($options)) {
        curl_setopt_array($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 $xml;
    }
    /**
     * 例如:
     * appid:  wxd930ea5d5a258f4f
     * mch_id:  10000100
     * device_info: 1000
     * Body:  test
     * nonce_str: ibuaiVcKdpRxkhJA
     * 第一步:对参数按照 key=value 的格式,并按照参数名 ASCII 字典序排序如下:
     * stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_i
     * d=10000100&nonce_str=ibuaiVcKdpRxkhJA";
     * 第二步:拼接支付密钥:
     * stringSignTemp="stringA&key=192006250b4c09247ec02edce69f6a2d"
     * sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A9CF3B7"
     */
    public static function getSign($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;
    }
  }
  以上代码大家都能看得懂吧,有哪里不明白的地方欢迎给我留言,我会在第一时间和大家取得联系的。谢谢大家对脚本之家网站的支持。

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