switon/validation

Attribute-driven validation with normalization and locale-aware error messages for Switon Framework

v1.0.0 2026-06-06 13:43 UTC

Requires

• php: >=8.3
• switon/core: ^1.0

Requires (Dev)

• phpstan/extension-installer: ^1.4
• phpstan/phpstan: ^2.0
• switon/testing: ^1.0

MIT

• switon

• validator
• validation
• constraints
• switon

README

Switon's validation layer for constraint attributes, typed input conversion, and localized error messages.

Highlights

• Constraint attributes: Required, Length, Email, and related attributes validate fields directly.
• Typed values: Type and Defaults can fill and cast values during validation.
• Validation flow: one-shot and manual validation are both supported.
• Localized messages: template files provide per-locale fallback messages and labels.

Installation

composer require switon/validation

Quick Start

use Switon\Validating\Attribute\Defaults;
use Switon\Validating\Attribute\Email;
use Switon\Validating\Attribute\Length;
use Switon\Validating\Attribute\Required;
use Switon\Validating\Attribute\Type;
use Switon\Core\Attribute\Autowired;
use Switon\Validating\ValidatorInterface;

final class UserService
{
    #[Autowired] protected ValidatorInterface $validator;

    public function register(array $input): array
    {
        return $this->validator->validateValues($input, [
            'email' => [new Required(), new Email()],
            'name' => [new Required(), new Length(2, 32)],
            'age' => [new Defaults(18), new Type('int')],
        ]);
    }
}

Docs: https://docs.switon.dev/latest/validation

License

MIT.