PHP实现微信提现功能

提现必须得用双向证书、所以大家一定要在微信的商户平台找到相应的地方去设置、因为做这个提现已经有一段时间了、所以设置微信商户平台的那几个地方没有图的情况、也说不清楚、下次再做提现的时候、给大家分享如何设置商户平台那几个地方、不是很难、下面贴代码

注意事项：商户打款时是从商户可用余额中减钱，所以确保商户可用余额充足，同时注意官方文档中的付款规则；

封装提现的方法

 function tixian($money){
     $appid = "################";//商户账号appid
     $secret = "##########";//api密码
     $mch_id = "#######";//商户号
     $mch_no = "#######";
     $openid="123456789";//授权用户openid

     $arr = array();
     $arr['mch_appid'] = $appid;
     $arr['mchid'] = $mch_id;
     $arr['nonce_str'] = ugv::randomid(20);//随机字符串，不长于32位
     $arr['partner_trade_no'] = '1298016501' . date("Ymd") . rand(10000, 90000) . rand(10000, 90000);//商户订单号
     $arr['openid'] = $openid;
     $arr['check_name'] = 'NO_CHECK';//是否验证用户真实姓名，这里不验证
     $arr['amount'] = $money;//付款金额，单位为分
     $desc = "###提现";
     $arr['desc'] = $desc;//描述信息
     $arr['spbill_create_ip'] = '192.168.0.1';//获取服务器的ip
     //封装的关于签名的算法
     $notify = new Notify_pub();
     $notify->weixin_app_config = array();
     $notify->weixin_app_config['KEY'] = $mch_no;

     $arr['sign'] = $notify->getSign($arr);//签名

     $var = $notify->arrayToXml($arr);
     $xml = $this->curl_post_ssl('https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers', $var, 30, array(), 1);
     $rdata = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
     $return_code = (string)$rdata->return_code;
     $result_code = (string)$rdata->result_code;
     $return_code = trim(strtoupper($return_code));
     $result_code = trim(strtoupper($result_code));

     if ($return_code == 'SUCCESS' && $result_code == 'SUCCESS') {
       $isrr = array(
         'con'=>'ok',
         'error' => 0,
       );
     } else {
       $returnmsg = (string)$rdata->return_msg;
       $isrr = array(
         'error' => 1,
         'errmsg' => $returnmsg,
       );

     }
     return json_encode($isrr);
 } 

用到的curl_post_ssl()

 function curl_post_ssl($url, $vars, $second = 30, $aHeader = array())
   {
     $isdir = "/cert/";//证书位置

     $ch = curl_init();//初始化curl

     curl_setopt($ch, CURLOPT_TIMEOUT, $second);//设置执行最长秒数
     curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//要求结果为字符串且输出到屏幕上
     curl_setopt($ch, CURLOPT_URL, $url);//抓取指定网页
     curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);// 终止从服务端进行验证
     curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);//
     curl_setopt($ch, CURLOPT_SSLCERTTYPE, 'PEM');//证书类型
     curl_setopt($ch, CURLOPT_SSLCERT, $isdir . 'apiclient_cert.pem');//证书位置
     curl_setopt($ch, CURLOPT_SSLKEYTYPE, 'PEM');//CURLOPT_SSLKEY中规定的私钥的加密类型
     curl_setopt($ch, CURLOPT_SSLKEY, $isdir . 'apiclient_key.pem');//证书位置
     curl_setopt($ch, CURLOPT_CAINFO, 'PEM');
     curl_setopt($ch, CURLOPT_CAINFO, $isdir . 'rootca.pem');
     if (count($aHeader) >= 1) {
       curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);//设置头部
     }
     curl_setopt($ch, CURLOPT_POST, 1);//post提交方式
     curl_setopt($ch, CURLOPT_POSTFIELDS, $vars);//全部数据使用HTTP协议中的"POST"操作来发送

     $data = curl_exec($ch);//执行回话
     if ($data) {
       curl_close($ch);
       return $data;
     } else {
       $error = curl_errno($ch);
       echo "call faild, errorCode:$error\n";
       curl_close($ch);
       return false;
     }
 }

关于具体签名算法，可参考微信官方文档；

简单示范签名算法：

 //将要发送的数据整理为$data

 ksort($data);//排序
 //使用URL键值对的格式（即key1=value1&key2=value2…）拼接成字符串
 $str='';
 foreach($data as $k=>$v) {
   $str.=$k.'='.$v.'&';
 }
 //拼接API密钥
 $str.='key='.$secrect;
 $data['sign']=md5($str);//加密

将数组转换成xml格式（简单方法）：

 //遍历数组方法
 function arraytoxml($data){
   $str='<xml>';
   foreach($data as $k=>$v) {
     $str.='<'.$k.'>'.$v.'</'.$k.'>';
   }
   $str.='</xml>';
   return $str;
 }

将xml格式转换为数组：

 function xmltoarray($xml) {
    //禁止引用外部xml实体
   libxml_disable_entity_loader(true);
   $xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
   $val = json_decode(json_encode($xmlstring),true);
   return $val;
 }
  

下面来看看ThinkPHP5封装的提现类。

 <?php
 namespace Home\Controller;
 use Think\Controller;
 class TixianController extends Controller{

   //高级功能-》开发者模式-》获取
   private $app_id1 = '';   //appid
   private $app_secret1 = ''; //secreat
   private $apikey1 = ''; //支付秘钥
   private $mchid1 = 's';    //商户号

     private $app_id=null;
     private $app_secret=null;
     private $apikey=null;
     private $mchid=null;

   public $error=0;
   public $state = '';
   //金额,需在实例化时传入
   public $amount = '0';
   //用户订单号,需在实例化时传入
   public $order_sn = '';
   //用户openid,需在实例化时传入
   public $openid = '';

   //微信提现操作接口-------》
   public function actionAct_tixian()
   {

    $this->state=md5(uniqid(rand(), TRUE));
    $this->amount=I('amount');//设置POST过来钱数
    $this->order_sn=rand(100,999).date('YmdHis'); //随机数可以作为单号
    $this->openid= I('openid'); //设置获取POST过来用户的OPENID
     $user_id = I('user_id');

    $this->app_id=$this->app_id1;
    $this->app_secret=$this->app_secret1;
    $this->apikey=$this->apikey1;
    $this->mchid=$this->mchid1;
    $xml=$this->tiXianAction();
    $result=simplexml_load_string($xml);

    if($result->return_code=='SUCCESS' && $result->result_code=='SUCCESS') {

         $cash = D('cash');
         $data['user_id'] = $user_id;
         $data['amount'] = $this->amount;
         $res = $cash->where('user_id="'.$user_id.'"')->find();
         if($res){
           $res2 = $cash->where('user_id="'.$user_id.'"')->setInc('amount',$this->amount);
           $res4 = D('member')->where('user_id="'.$user_id.'"')->setDec('user_balance',$this->amount);
         }else{
           $res3 = $cash->add($data);
         }

       $output = array('code' => 1, 'data' => $result->result_code, 'info' => '提现成功');
       exit(json_encode($output));
    }else{

       $output = array('code' => 2, 'data' => $xml, 'info' => '提现失败');
       exit(json_encode($output));
    }
   }
   /**
   * 提现接口操作,控制器调用
   * @param $openid 用户openid 唯一标示
   * @return
   */
   //提现接口操作
   public function tiXianAction(){
    //获取xml数据
    $data=$this->getdataXml($this->openid);
    $ch = curl_init ();
    //接口地址
    $MENU_URL="https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";

    curl_setopt ( $ch, CURLOPT_URL, $MENU_URL );
    curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
    curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
    curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE );

    //证书地址,微信支付下面

     curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
     curl_setopt($ch,CURLOPT_SSLCERT, 'C:\web\www\Home\wx_pay\apiclient_cert.pem'); //证书这块大家把文件放到哪都行、
     curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
     curl_setopt($ch,CURLOPT_SSLKEY, 'C:\web\www\Home\wx_pay\apiclient_key.pem');//注意证书名字千万别写错、

    //$zs1=dirname(dirname(__FILE__)).'\wx_pay\apiclient_cert.pem';
    //$zs2=dirname(dirname(__FILE__)).'\wx_pay\apiclient_key.pem';
    //show_bug($zs1);

    //curl_setopt($ch,CURLOPT_SSLCERT,$zs1);
    //curl_setopt($ch,CURLOPT_SSLKEY,$zs2);
    // curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01;
    // Windows NT 5.0)');
    //curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 );
    curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 );
    curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
    curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
    $info = curl_exec ( $ch );
     //返回结果
     if($info){
       curl_close($ch);
       return $info;
     } else {
       $error = curl_errno($ch);
       curl_close($ch);
       return "curl出错，错误码:$error";
     }
   }
   /**
   * 获取数据封装为数组
   * @param $openid 用户openid 唯一标示
   * @return xml
   */

   private function getdataXml($openid){
    //封装成数据
    $dataArr=array(
      'amount'=>$this->amount*100,//金额（以分为单位，必须大于100）
      'check_name'=>'NO_CHECK',//校验用户姓名选项，NO_CHECK：不校验真实姓名 FORCE_CHECK：强校验真实姓名（未实名认证的用户会校验失败，无法转账）OPTION_CHECK：针对已实名认证的用户才校验真实姓名（未实名认证用户不校验，可以转账成功）
      'desc'=>'提现',//描述
      'mch_appid'=>$this->app_id,
      'mchid'=>$this->mchid,//商户号
      'nonce_str'=>rand(100000, 999999),//不长于32位的随机数
      'openid'=>$openid,//用户唯一标识
      'partner_trade_no'=>$this->order_sn,//商户订单号
      're_user_name'=>'',//用户姓名，check_name为NO_CHECK时为可选项
      'spbill_create_ip'=>$_SERVER["REMOTE_ADDR"],//服务器ip
    );
    //获取签名
    $sign=$this->getSign($dataArr);
    //xml数据
    $data="<xml>
      <mch_appid>".$dataArr['mch_appid']."</mch_appid>
      <mchid>".$dataArr['mchid']."</mchid>
      <nonce_str>".$dataArr['nonce_str']."</nonce_str>
      <partner_trade_no>".$dataArr['partner_trade_no']."</partner_trade_no>
      <openid>".$dataArr['openid']."</openid>
      <check_name>".$dataArr['check_name']."</check_name>
      <re_user_name>".$dataArr['re_user_name']."</re_user_name>
      <amount>".$dataArr['amount']."</amount>
      <desc>".$dataArr['desc']."</desc>
      <spbill_create_ip>".$dataArr['spbill_create_ip']."</spbill_create_ip>
      <sign>".$sign."</sign>
      </xml>";
    return $data;

   }
   /**
   *   作用：格式化参数，签名过程需要使用
   */
   private function formatBizQueryParaMap($paraMap, $urlencode)
   {

    $buff = "";
    ksort($paraMap);
    foreach ($paraMap as $k => $v)
    {
      if($v){
       if($urlencode)
       {
         $v = urlencode($v);
       }

       $buff .= $k . "=" . $v . "&";
      }

    }
    $reqPar=NULL;
    if (strlen($buff) > 0)
    {
      $reqPar = substr($buff, 0, strlen($buff)-1);
    }

    return $reqPar;
   }

   /**
   *   作用：生成签名
   */
   private function getSign($Obj)
   {

    foreach ($Obj as $k => $v)
    {
      $Parameters[$k] = $v;
    }
    //签名步骤一：按字典序排序参数
    ksort($Parameters);
    $String = $this->formatBizQueryParaMap($Parameters, false);
    //echo '【string1】'.$String.'</br>';
    //签名步骤二：在string后加入KEY
    $String = $String."&key=".$this->apikey;
    //echo "【string2】".$String."</br>";
    //签名步骤三：MD5加密
    $String = md5($String);
    //echo "【string3】 ".$String."</br>";
    //签名步骤四：所有字符转为大写
    $result_ = strtoupper($String);
    //echo "【result】 ".$result_."</br>";
    return $result_;
   }
   //-----------
   private function http($url, $method='POST', $postfields = null, $headers = array())
   {
    header("Content-Type:text/html;charset=utf-8");
    $ch = curl_init();
    /* Curl settings */
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POSTFIELDS, "");
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE); // https请求 不验证证书和hosts
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_TIMEOUT, 30);
    switch ($method){
      case 'POST':
       curl_setopt($ch,CURLOPT_POST, true);
       break;
    }
    curl_setopt($ch, CURLOPT_HTTPHEADER,$headers);
    curl_setopt($ch, CURLINFO_HEADER_OUT, true);
    $response = curl_exec($ch);
    $http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE); //返回请求状态码
    curl_close($ch);
    return array($http_code, $response);
   }

 }

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