Question

I want to know is there any way to split text like this:

123456789 into 123-456-789

as to add “-” after every 3 characters?

Just wanted to know, as I know the reverse, but how to do this is over my head. 😉

and also if the text is

ABCDEFGHI OR A1B2C3D4E or any other format 
without any space between the characters !

language: PHP only

Answer 1

<?php
$i = '123456789';
echo 'result: ', wordwrap($i, 3, '-', true);

prints

result: 123-456-789

see http://php.net/wordwrap