destructor access to constants

Hi,

I'm wondering if it's a bug to give automatically called destructors
access to constants (PHP Version 5.0.0b1). I'd expect to be neither able
to access global variables nor constants after script termination (die()).

Ulf

$dtor = 'global $dtor variable is visible';
define('DTOR', 'DTOR constant is visible');

class dtor {

function __destruct() {
global $dtor;
printf('$dtor = "%s"<br> DTOR = "%s"<br>', $dtor, DTOR);
}
}

$d1 = new dtor();
unset($d1);

$d2 = new dtor();
die();

generated output:

$dtor = "global $dtor variable is visible"
DTOR = "DTOR constant is visible"
$dtor = ""
DTOR = "DTOR constant is visible"