200) { throw new \DomainException('Applicant firstname exceeds the maximum allowed length.'); } $trimmedLastname = mb_trim($lastname); if ($trimmedLastname === '') { throw new \DomainException('Applicant lastname cannot be empty.'); } if (mb_strlen($trimmedLastname) > 200) { throw new \DomainException('Applicant lastname exceeds the maximum allowed length.'); } } }