public static function getContents($filename)
    {
        $file = fopen($filename, "r");

        if ($file === false) {
            throw new \RuntimeException("Cannot read the file: {$filename}");
        }

        $data = [];
        while ($row = fgetcsv($file)) {
            $data[] = $row;
        }

        fclose($file);

        return $data;
    }