PHP preg_replace to insert string into input string

Question

I have a string in format:

Rooms available: Master bedroomDining roomLiving room

I want to convert this string into like:

Rooms available: Master bedroom, Dining room, Living room

So, inserting a ', ' (comma and space) in between each lowercase_char[here]UPPERCASE_CHAR

Getting the lowercase_charUPPERCASE_CHAR is easy but can't figure out how to insert ', ' in between them.

Anyone?

gen_Eric · Accepted Answer · 2015-10-15 16:14:44Z

3

If you are using a regex, you need to put the each letter in its own capture group, so you can split them apart.

$string = 'Rooms available: Master bedroomDining roomLiving room';

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

answered Oct 15, 2015 at 16:14

gen_Eric

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