pinkary-project/pinkary.com

use Closure;
use Illuminate\Contracts\Validation\ValidationRule;

final readonly class NoBlankCharacters implements ValidationRule
{
    public function validate(string $attribute, mixed $value, Closure $fail): void
    {
        $value = type($value)->asString();

        if (preg_match("/\p{Cf}/u", $value)) {
            $fail('The :attribute field cannot contain blank characters.');
        }
    }
}

use App\Rules\NoBlankCharacters;
use Illuminate\Foundation\Http\FormRequest;

final class UserUpdateRequest extends FormRequest
{
    public function rules(): array
    {
        $user = type($this->user())->as(User::class);

        return [
            'name' => ['required', 'string', 'max:255', new NoBlankCharacters],
            // ...
        ];
    }
}