data = $data; } public function isSuccess() { return $this->data['returnCode'] == '0000'; } public function get($key) { return $this->data[$key] ?? null; } public function getMessage() { return $this->data['returnMsg']; } public function getData() { $data = $this->data; unset($data['returnCode']); unset($data['returnMsg']); unset($data['nonceStr']); unset($data['customerCode']); return $data; } }