PHP实现微信开发中提现功能（企业付款到用户零钱）

 //封装提现方法
  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);
    }    

//上个方法中用到的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;
        }
    }

//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

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

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;
}