[thelist] preg_split in PHP

[noah]

I'm trying to use preg_split (or split) to split a string in PHP. The 
string is just a number (e.g., 2457) and I want to split it into individual 
digits.

When I use

$acts = preg_split('//', '2457');
$number_of_acts = (count($acts));

$number_of_acts comes back as 6.

So I tried using PREG_SPLIT_NO_EMPTY, like this:

$acts = preg_split('//', '2457', PREG_SPLIT_NO_EMPTY);
$number_of_acts = (count($acts));

Now $number_of_acts comes back as 1.

I'm using PHP 4.0b2 (if that means anything).

Anyone have any idea what I might be doing wrong, or how I might accomplish 
what I'm trying to do?

Thanks,
Noah