'Success', self::CREATED => 'Created', self::ACCEPTED => 'Accepted', self::NO_CONTENT => 'No Content', self::BAD_REQUEST => 'Bad Request', self::UNAUTHORIZED => 'Unauthorized', self::FORBIDDEN => 'Forbidden', self::NOT_FOUND => 'Not Found', self::METHOD_NOT_ALLOWED => 'Method Not Allowed', self::UNPROCESSABLE_ENTITY => 'Unprocessable Entity', self::TOO_MANY_REQUESTS => 'Too Many Requests', self::SERVER_ERROR => 'Server Error', self::SERVICE_UNAVAILABLE => 'Service Unavailable', default => 'Unknown Error', }; } }