session side-effect warning? what's this?

Tea_J

Warning: Unknown(): Your script possibly relies on a session side-effect which existed until PHP 4.2.3. Please be advised that the session extension does not consider global variables as a source of data, unless register_globals is enabled. You can disable this functionality and this warning by setting session.bug_compat_42 or session.bug_compat_warn to off, respectively. in Unknown on line 0

i've been getting these warning messages .. what do they mean? can someone kindly explain?

Weedpacket

You're not still using session_register() are you?

session_start();
$_SESSION['variable']=$data_on_first_page;

session_start();
$data_on_second_page = $_SESSION['variable'];

Is so much simpler.

php.ini

; PHP 4.2 and less have an undocumented feature/bug that allows you to
; to initialize a session variable in the global scope, albeit register_globals
; is disabled.  PHP 4.3 and later will warn you, if this feature is used.
; You can disable the feature and the warning seperately. At this time,
; the warning is only displayed, if bug_compat_42 is enabled.

Tea_J

nope.. i dont use session_register() .. i do exactly as your example shows.

Weedpacket

Well, I dunno then; I've only ever seen it in relation to code of the form

session_start();
$foo = 'bar';
function register_foo()
{
	session_register('foo');
}
register_foo();

How are you doing it?

Tea_J

yah well, weird aint it?

hmmm..

tea