refactoring

        $this->functions = $functions;

    }

    #[Route('/', name: 'home', methods: ['POST'])]

    public function home(Request $request): Response

    #[Route('/func1', name: 'home', methods: ['POST'])]

    public function func1(Request $request): Response

    {

        $array = $request->get('arr');

        $errors = ArrayValidation::validate($array);

        if (count($errors) > 0) {

            return new Response((string)$errors);

        if (!ArrayValidation::validateFunc1($array)) {

            return new Response("Invalid array");

        }

        $array = $this->functions->sortPrice($array);

        return $this->json($array);

namespace App\Validation;

use Symfony\Component\Validator\Validation;

use Symfony\Component\Validator\Constraints as Assert;

use Symfony\Component\Validator\ConstraintViolationListInterface;

class ArrayValidation

{

    public static function validate(array $array): ConstraintViolationListInterface

    public static function validateFunc1(array $array): bool

    {

        $validator = Validation::createValidator();

        $constraints = new Assert\Optional([

            new Assert\Collection([

                new Assert\Optional([

                    new Assert\Type('array'),

                    new Assert\Collection([

                        'price' => new Assert\Type('int'),

                        'count' => new Assert\Type('int')

                    ])

                ])

            ])

        ]);

        return $validator->validate($array, $constraints);

        $prices = array_column($array, 'price');

        $counts = array_column($array, 'count');

        return ctype_digit(implode('',$prices)) && ctype_digit(implode('', $counts));

    }

}

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