Php question

[Jackboy]

$blah .= "lol<br>";
$blah .= "beans";
echo $blah; 

I never heard of or used .= until today....

Does it just add to the array so that when you echo the array for me it would display

lol
beans

[Invent]

All it does is instead of setting a new variable it just adds the new string to the end of the existing variable.

[Jackboy]

Thats pretty wkd then

[Source]

Yea, its a nice little thing to know. And simple.