wampserver 3.2.0 +win10 (3 replies)

I'm new here, and I'm also new to using wamp.
when I run a .php program the browser shows me the path of the file,. for example if I write something as simple as:

<? php
$ a = 24;
var_dump ($ a);
?>

the result is "C: \ wamp \ www \ classe04.php: 3: int 24 " .
why?
thanks in advance.
JG