[PHP] String to an Array

[Rodrigo de Oliveira Costa]

Hi guys, I got a string that I need to be transformed into na array of
characters, something like:
 
 
$str      ="im the one trying to do this";
 
//this is the string
 
I'd like to get an array that I can access something like $array[0] and
get the value " i ". And this foward. Anyone have any clues on this?
 
Thanks,
Rodrigo