Cachearium\CacheAbstract::keyFromDeps PHP Method

    protected function keyFromDeps(CacheKey $k, $deps)
    {
        $mainkey = $this->hashKey($k);
        foreach ($deps as $d) {
            // TODO: arrays are ugly
            $mainkey .= $this->hashKey($d);
            // TODO: one fetch for all
        }
        $mainkey = md5($mainkey);
        return $mainkey;
    }