Hi gang:
I am reviewing some old code (circa 2003) where the programmer had
one script call another and placed variable values in the URL, like
so:
<a href="user_edit.php?user_id=5223&action=edit">
That seems innocent enough. However, in the called script (i.e.,
"user_edit.php") there are no:
$user_id = $_GET['user_id'];
$action = $_GET['action'];
statements to populate the variables, yet the variables get populated
with the values sent!?!
How did he do that?
Incidentally, he did have in the .htaccess file the statement:
php_flag register_globals 1
So I figure that Globals have something to do with it, but I never
use Globals. And if I print_r $GLOBALS, I find that user_id and
action are listed (many times), but I don't see how that works.
Furthermore, something got changed and the entire script no longer
works. So I'm in a quandary to figure this out -- any ideas,
suggestions, references?
Thanks,
tedd
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