OTTPay对接微信小程序

merchant = $merchant;
        $this->operatorId = $operatorId;
        $this->appId = $appId;
        $this->backurl = $backurl;
        $this->signKey = $signKey;
    }

    /**
     * 发起支付信息
     */
    public function pay($orderSn, $amount, $openId)
    {
        $wechatOrder = [
            'action' => 'MAPPPAY',
            'version' => 1.1,
            'merchant_id' => $this->merchant,
            'data' => [
                'order_id' => $orderSn,
                'operator_id' => $this->operatorId,
                'amount' => strval(($amount * 100)),
                'biz_type' => 'WECHATPAY',
                'app_id' => $this->appId,
                'open_id' => $openId,
                'call_back_url' => $this->backurl,
            ],
        ];
        
        $sign = $this->enctry($wechatOrder, $this->signKey);

        $wechatOrder["data"] = $sign['basesign'];
        $wechatOrder["md5"] = $sign['sign'];

        $resDate = $this->httpsClient($wechatOrder);
        if ($resDate == "") {
            return [];
        }

        return $this->decrypt($resDate);
    }

    /**
     * 发起支付信息
     */
    public function query($orderSn)
    {
        $wechatOrder = [
            'action' => 'REFUND',
            'version' => 1.0,
            'merchant_id' => $this->merchant,
            'data' => [
                'order_id' => $orderSn,
            ],
        ];

        $sign = $this->enctry($wechatOrder, $this->signKey);
        $wechatOrder["data"] = $sign['basesign'];
        $wechatOrder["md5"] = $sign['sign'];
        $resDate = $this->httpsClient($wechatOrder);
        if ($resDate == "") {
            return [];
        }

        return $this->decrypt($resDate);
    }

    /**
     * 发起退款
     */
    public function refund($orderId, $oriOrderId, $refundAmt)
    {
        $wechatOrder = [
            'action' => 'REFUND',
            'version' => 1.0,
            'merchant_id' => $this->merchant,
            'data' => [
                'order_id' => $orderId,
                'ori_order_id' => $oriOrderId,
                'refund_amt' => $refundAmt,
            ],
        ];

        $sign = $this->enctry($wechatOrder, $this->signKey);
        $wechatOrder["data"] = $sign['basesign'];
        $wechatOrder["md5"] = $sign['sign'];
        $resDate = $this->httpsClient($wechatOrder);
        if ($resDate == "") {
            return [];
        }

        return $this->decrypt($resDate);
    }


    /**
     * @param 加密信息
     */
    private function enctry($data, $key)
    {
        
        $data_array = $data['data'];
        $temp_data_array = $data_array;
        ksort($temp_data_array);
        $data_str = implode(array_values($temp_data_array));
        $data_md5 = strtoupper(md5($data_str));
        $user_key = $key; //using your Sign Key provided by OTTPAY;
        $aesKeyStr = strtoupper(substr(md5($data_md5.$user_key), 8, 16));
        $data_json = json_encode($data_array);
        $aes = openssl_encrypt($data_json, 'AES-128-ECB', $aesKeyStr, OPENSSL_RAW_DATA);
        $basesign = base64_encode($aes);
        return ['sign' => $data_md5, 'basesign' => $basesign];
        
        
        
        // $newdata = $data["data"];
        // ksort($newdata);
        // $str = implode(array_values($newdata));
        // $signs = md5($str);
        // $signs = strtoupper($signs);
        // var_dump($signs);
        // $sign = strtoupper($signs . $key);
        // var_dump($sign);
        // var_dump(strtoupper(md5($sign)));
        // $key = strtoupper(substr(strtoupper(md5($sign)), 8, 16));
        // var_dump($key);
        // $ordata = json_encode($newdata);
        // var_dump($ordata);
        // $aes = openssl_encrypt($ordata, 'AES-128-ECB', $key, OPENSSL_RAW_DATA);
        // $basesign = base64_encode($aes);
        // return ['sign' => $signs, 'basesign' => $basesign];
    }

    /**
     * @param 解密信息
     */
    private function decrypt($response)
    {
        $responseArr = json_decode($response, true);
        if ($responseArr['rsp_code'] == "FAIL") {
            $this->errors = $responseArr['rsp_msg'];
            return [];
        }
        $signjm = strtoupper($responseArr["md5"] . $this->signKey);
        $keyjm = strtoupper(substr(md5($signjm), 8, 16));
        $d = base64_decode($responseArr['data']);
        $responseDecr = openssl_decrypt($d, 'AES-128-ECB', $keyjm, OPENSSL_RAW_DATA);
        return json_decode($responseDecr, true);
    }

    /**
     * @param 获取错误信息
     */
    public function getError()
    {
        return $this->errors;
    }

    private function httpsClient($data)
    {
       
        $dataHttp = json_encode($data, JSON_UNESCAPED_UNICODE);
        $url = "https://frontapi.ottpay.com:443/processV2";
        $header[] = "Content-type: application/json;charset=utf-8";
        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // 兼容本地没有指定curl.cainfo路径的错误
        curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $dataHttp);
        $ret = curl_exec($ch);
        $err = curl_error($ch);
        if (false === $ret || !empty($err)) {
//            $errno = curl_errno($ch);d
//            $info = curl_getinfo($ch);
            curl_close($ch);
            return "";
        }
        curl_close($ch);
        return $ret;
    }
}

?>