HM\BackUpWordPress\Site_Size::get_cached_filesizes PHP Method

    public function get_cached_filesizes($max_age = WEEK_IN_SECONDS)
    {
        $cache = PATH::get_path() . '/.files';
        $files = false;
        if (file_exists($cache)) {
            // If the file is old then regenerate it
            if (time() - filemtime($cache) <= $max_age) {
                $files = json_decode(gzuncompress(file_get_contents($cache)), 'ARRAY_A');
            }
        }
        return $files;
    }