PHP progressbar

<html>
<head>
<title></title>
</head>
<body>
<?php
if(isset($_GET['progress_key'])) {
    $status = apc_fetch('upload_'.$_GET['progress_key']);
    if($status['current']<1)
    {
        $percent=0;
        echo $percent;
    }
    else
    {
        $percent = round($status['current']/$status['total']*100);
        echo $percent;
    }
}
?>
<?php
header("Percent:".$percent);
?>
</body>
</html>