PHP 微信支付类 demo

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PHP 微信支付类 demo

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。

出处：http://www.phpfensi.com/php/20210627/16755.html

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