Simple one function PHP progress bar

progress.php

   /**
     * @param int $done
     * @param int $total
     */
    function progress($done, $total)
    {
        $totalSeg = 20;
        $seq = intval(($done / $total) * $totalSeg);
        $str = "[" . str_repeat('=', $seq) . str_repeat(' ', $totalSeg - $seq) . "] $done/$total";
        echo "\r$str";
    }