Globals off... for $PHP_SELF

[sinus_]

newbie question:
Register Globals is OFF

echo "<p><a href=\"$PHP_SELF?target=1\">Home</a></p>";

these dont seem to work:

$HTTP_POST_VARS['PHP_SELF']?target=1 wont work...
$HTTP_SERVER_VARS['PHP_SELF']?target=1 wont work...

thanks