WecharGetCash.php 5.8 KB
<?php
/**
 * Created by PhpStorm.
 * User: ruidiudiu
 * Date: 2018/10/16
 * Time: 16:34
 */

namespace wxapp\pay;
const APICLIENT_CERT=EXTEND_PATH."wxapp/pay/cert/apiclient_cert.pem";
const APICLIENT_KEY=EXTEND_PATH."wxapp/pay/cert/apiclient_key.pem";
class WecharGetCash{
    protected $appid;//商户账号
    protected $mch_id;//商户号
    protected $key;
    protected $partner_trade_no;//商户订单号
    protected $openid;
    protected $check_name;//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
    protected $amount;//金额
    protected $desc;//企业付款备注
    protected $spbill_create_ip;//Ip地址:该IP同在商户平台设置的IP白名单中的IP没有关联,该IP可传用户端或者服务端的IP。

    function __construct($openid,$partner_trade_no,$desc,$amount) {
        $this->appid = config('wechat_config.app_id');
        $this->mch_id = config('wechat_config.payment')['merchant_id'];
        $this->key = config('wechat_config.payment')['key'];
        $this->partner_trade_no = $partner_trade_no;//商户订单号
        $this->openid = $openid;
        $this->check_name = "NO_CHECK";
        $this->amount = $amount*100;//金额
        $this->desc = $desc;//企业付款备注
        $this->spbill_create_ip = "114.215.223.17";//Ip地址
    }

    public function getCash() {
        //提现接口
        $return = $this->enterprisePayment();
        return $return;
    }
    //企业付款接口
    private function enterprisePayment() {
        $url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
        $parameters = array(
            'mch_appid' => $this->appid,
            'mchid' => $this->mch_id,
            'nonce_str' => $this->createNoncestr(),
            'partner_trade_no' => $this->partner_trade_no,
            'openid' => $this->openid,
            'check_name' => $this->check_name,
            'amount' => $this->amount,
            'desc' => $this->desc,
            'spbill_create_ip' => $this->spbill_create_ip
        );
        //签名
        $parameters['sign'] = $this->getSign($parameters);
        $xmlData = $this->arrayToXml($parameters);
        $return = $this->xmlToArray($this->postXmlCurl($xmlData, $url, 60));
        return $return;
    }

    private static function postXmlCurl($xml, $url, $second = 30)
    {
        $ch = curl_init();
        //设置超时
        curl_setopt($ch, CURLOPT_TIMEOUT, $second);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); //严格校验

        //第一种方法,cert 与 key 分别属于两个.pem文件
        //默认格式为PEM,可以注释
        curl_setopt($ch,CURLOPT_SSLCERT,APICLIENT_CERT);
        curl_setopt($ch,CURLOPT_SSLKEY,APICLIENT_KEY);

        //设置header
        curl_setopt($ch, CURLOPT_HEADER, FALSE);
        //要求结果为字符串且输出到屏幕上
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
        //post提交方式
        curl_setopt($ch, CURLOPT_POST, TRUE);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
        curl_setopt($ch, CURLOPT_TIMEOUT, 40);
        set_time_limit(0);
        //运行curl
        $data = curl_exec($ch);
        //返回结果
        if ($data) {
            curl_close($ch);
            return $data;
        } else {
            $error = curl_errno($ch);
            curl_close($ch);
            throw new ErrorException("curl出错,错误码:$error");
        }
    }

    //数组转换成xml
    private function arrayToXml($arr) {
        $xml = "<root>";
        foreach ($arr as $key => $val) {
            if (is_array($val)) {
                $xml .= "<" . $key . ">" . $this->arrayToXml($val) . "</" . $key . ">";
            } else {
                $xml .= "<" . $key . ">" . $val . "</" . $key . ">";
            }
        }
        $xml .= "</root>";
        return $xml;
    }
    //xml转换成数组
    public function xmlToArray($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;
    }

    //作用:产生随机字符串,不长于32位
    private function createNoncestr($length = 32) {
        $chars = "abcdefghijklmnopqrstuvwxyz0123456789";
        $str = "";
        for ($i = 0; $i < $length; $i++) {
            $str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
        }
        return $str;
    }

    //作用:生成签名
    public 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);
        //签名步骤二:在string后加入KEY
        $String = $String . "&key=" . $this->key;
        //签名步骤三:MD5加密
        $String = md5($String);
        //签名步骤四:所有字符转为大写
        $result_ = strtoupper($String);
        return $result_;
    }

    ///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(null != $v && "null" != $v && "sign" != $k) {
                if ($urlencode) {
                    $v = urlencode($v);
                }
                $buff .= $k . "=" . $v . "&";
            }
        }
        $reqPar='';
        if (strlen($buff) > 0) {
            $reqPar = substr($buff, 0, strlen($buff) - 1);
        }
        return $reqPar;
    }
}