时间：20210131

1 直接使用sdk

 $aop = new \AopCertClient();
        $appCertPath = config('alipay.appCertPath');//"应用证书路径（要确保证书文件可读），例如：/home/admin/cert/appCertPublicKey.crt";
        $alipayCertPath = config('alipay.alipayCertPath');//"支付宝公钥证书路径（要确保证书文件可读），例如：/home/admin/cert/alipayCertPublicKey_RSA2.crt";
        $rootCertPath =  config('alipay.rootCertPath');//"支付宝根证书路径（要确保证书文件可读），例如：/home/admin/cert/alipayRootCert.crt";

        $aop->gatewayUrl = 'https://openapi.alipay.com/gateway.do';
        $aop->appId = config('alipay.appId');
        $aop->rsaPrivateKey = config('alipay.rsaPrivateKey');
        $aop->alipayrsaPublicKey = $aop->getPublicKey($alipayCertPath);//调用getPublicKey从支付宝公钥证书中提取公钥
        $aop->apiVersion = '1.0';
        $aop->signType = 'RSA2';
        $aop->postCharset='utf-8';
        $aop->format='json';
        $aop->isCheckAlipayPublicCert = true;//是否校验自动下载的支付宝公钥证书，如果开启校验要保证支付宝根证书在有效期内
        $aop->appCertSN = $aop->getCertSN($appCertPath);//调用getCertSN获取证书序列号
        $aop->alipayRootCertSN = $aop->getRootCertSN($rootCertPath);//调用getRootCertSN获取支付宝根证书序列号


        $request = new \AlipayFundTransToaccountTransferRequest();
        $request->setBizContent("{" .
            "\"out_biz_no\":\"$order_no\"," .
            "\"payee_type\":\"ALIPAY_LOGONID\"," .
            "\"payee_account\":\"$account\"," .
            "\"amount\":\"$price\"," .
            "\"payer_show_name\":\"有限公司\"," .
            "\"payee_real_name\":\"$username\"," .
            "\"remark\":\"账户提现\"" .
            "}");
        $result = $aop->execute ( $request);
       
        $responseNode = str_replace(".", "_", $request->getApiMethodName()) . "_response";

        $resultCode = $result->$responseNode->code;
        if(!empty($resultCode)&&$resultCode == 10000){
            return true;
        } else {
            throw new Exception($result->$responseNode->sub_msg);
        }