How to concatenate in PHP?

Question

Create a variable called fullName and assign it a value equal to the concatenation of the firstName variable, a space, the middleName variable, a space, and the lastName variable.

I have :

$firstName = "Tony";
$middleName = "Muscles";
$lastName = "Montana";

Why doesn't the following work?

$fullName = $firstName." ".$middleName." ".$lastName

Answer 1

Missing the semicolon:

$fullName = $firstName.' '.$middleName.' '.$lastName;