[Resolved] File Uploads and Arrays?

[The Hobo]

I have a form somewhat like this:

<form action="index.php" method="post">
    1. <input type="file" name="f[]"><br>
    2. <input type="file" name="f[]"><br>
    3. <input type="file" name="f[]"><br>

    <input type="submit" value=" Send ">
</form>

Now, how can I tell how many, if any, of these include files?

I tried something like:

echo count($_FILES['f']);
//and:
echo count($_POST['f']);

But neither work.