How to concat string in PHP [duplicate]

Question

I want to do like this:

$string = "";
$string += "lol"; //maybe =+  > tried but both not working

But it isn't working, anyone suggestions? Google isn't making my life easy (cant search characters like = or +)

Answer 1

In PHP, string concatenation is done with the . operator:

$string .= 'lol';

+ is for addition.