Getting the size of a file

[ChimpFace9000]

Hey, how about next to the link of an attached file, how about the size of the file? Something like...

<?
    $Size = filesize(File_Name);
    $Type = "bytes";
    if($Size > 1024)
        {$Size = $Size / 1024; $Type = "kb";}
    if($Size > 1024)
        {$Size = $Size / 1024; $Type = "mb";}
    $Size = round($Size, 1);
    print "$Size $Type";
?>

I know you could have figured it out your self, but i thought if i did it, you would be more inclined to add it to the page.