PHP 프로젝트에서 몇 가지 문제에 직면합니다 

• Illogical type casting (PHP's native implementation is way too "smart")
• Pointless casts like array => float are allowed
• Boilerplate code to work with arrays (check if isset(), throw an exception, cast the type, etc.)

예.

$userId = $queryParams['userId'] ?? null;
if ($userId === null) {
    throw new BadRequestException();
}
$userId = (int)$userId;

https://github.com/zakirullin/mess