Question

I have a string that is something like

Firstname LastnameFirstname Lastname

and I want to convert that to

Firstname Lastname, Firstname Lastname

Is there a way in PHP to search for such a character map?

Answer 1

a simple/naiive method:

$string = preg_replace('/([a-z])([A-Z])/', "$1, $2", $string);

but as I put in my comment above, that’ll turn Rachel McAdams into Rachel Mc, Adams.