HomeController.php

<?php

namespace App\Controller;

use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Routing\Attribute\Route;

class HomeController extends AbstractController
{
    private function sortPrice(array $array): array
    {
        $price = [];
        $count = [];
        foreach ($array as $key => $row) {
            $price[$key] = $row['price'];
            $count[$key] = $row['count'];
        }
        array_multisort($price, SORT_DESC, $count, SORT_ASC, $array);
        return $array;
    }

    #[Route('/', name: 'home')]
    public function home(): Response
    {
        $array = array(
            ['price'=>10, 'count'=>2],
            ['price'=>5, 'count'=>5],
            ['price'=>8, 'count'=>5],
            ['price'=>12, 'count'=>4],
            ['price'=>8, 'count'=>4],
        );
        $array = $this->sortPrice($array);
        return $this->json($array);
    }
}