cacheOrDatabase.php

<?php

public function cacheOrDatabase(string $cacheKey, callable $callable)
{
    if ($this->cache->has($cacheKey)) {
        return $this->cache->get($cacheKey);
    }
    $fromDatabase = $callable();

    if ($dataFromDatabase === null || empty($dataFromDatabase)) {
        throw new Exception("Data retrieved from database is null or empty.");
    }

    $this->cache->set($cacheKey, $fromDatabase);

    return $fromDatabase;
}