Separating a few things with preg_split

Question

For the life of me, I can't figure out how to write the regex to split this.

Lets say we have the sample text:

15HGH(Whatever)ASD

I would like to break it down into the following groups (numbers, letters by themselves, and parenthesis contents)

15
H
G
H
Whatever
A
S
D

It can have any combination of the above such as:

15HGH
12ABCD
ABCD(Whatever)(test)

So far, I have gotten it to break apart either the numbers/letters or just the parenthesis part broken away. For example, in this case:

<?php print_r(preg_split( "/(\(|\))/", "5(Test)(testing)")); ?>

It will give me

Array ( [0] => 5 [1] => Test [2] => testing )

I am not really sure what to put in the regex to match on only numbers and individual characters when combined. Any suggestions?

Answer 1

I don't know if preg_match_all satisfying you:

$text = '15HGH(Whatever)ASD';
preg_match_all("/([a-z]+)(?=\))|[0-9]+|([a-z])/i", $text, $out);
echo '<pre>';
print_r($out[0]);

Array
(
    [0] => 15
    [1] => H
    [2] => G
    [3] => H
    [4] => Whatever
    [5] => A
    [6] => S
    [7] => D
)