Professional PHP Development

// Modern PHP 8+ Features
<?php

declare(strict_types=1);

readonly class BusinessService
{
    public function __construct(
        private DatabaseInterface $db,
        private CacheInterface $cache,
    ) {}

    public function getBusinessData(
        int $id
    ): ?Business {
        return $this->cache->remember(
            "business_{$id}",
            fn() => $this->db->find($id)
        );
    }
}