How to split a string?

[Mika]

I don't have any ideas how to do this so if there's anyone who can help me...

I have a string that can be like 12487299823749874
(length may vary)

I need to modify that string so that those numbers are like 5 numbers and a space and then next the five and a space and... starting from RIGHT (to left).

So the above should look like
12 48729 98237 49874

Anyone? Thanks!

[Floris]

I am not a php guru, but maybe php.net has some information about function.spliti.php or just split, preg_split, etc.

Hopefully that helps you on your way. Sorry if it doesn't.

[Mika]

Here's a dirty way to do it. I'm sure there's an elegant way somewhere

If that string is $viite

 $viite1 = substr($viite, -5, 5);
 $viite2 = substr($viite, -10, -5);
 $viite3 = substr($viite, -15, -10);
 $viite4 = substr($viite, -20, -15);
 
 $viiteuus = $viite4 . " " . $viite3 . " " . $viite2 . " " . $viite1;

... I know that $viite is <= 20 characters.

[jeffct]

try chunk_split