private function getRequest() { if (self::$postRequest != NULL) { return self::$postRequest; } $request = Request::getInstance(); if ($request->exists('HTTP_RAW_POST_DATA', Request::GLOBALS)) { self::$postRequest = $request->getValue('HTTP_RAW_POST_DATA', Request::GLOBALS); } else { self::$postRequest = implode("\r\n", file('php://input')); } return self::$postRequest; }