variable in hidden field

[isar21]

hi,
is there any option to store a variable in a hidden field ?
all my other atemps with fancy $http_get_vars etc have faild :-(
the only solution which works so far, is a new textarea, like:
<input name="id" type="password" value="<?=$id?>" size="45">

the action of my form looks like this:
<form action="<?=$PHP_SELF?>" method="get">

and it should do this:
$sql = "UPDATE events SET
city='$city',
address='$address',
day_time='$day_time',
conntact='$conntact'
WHERE ID='$id'" ;

but as soon as I use the submit action:
action="<?=$PHP_SELF?>"

my nice $id variable, which was caried over nicely with the url, is gone.
I am sure there is a elegant and simple solution for that...

any ideas ? help !

thanks a lot
isar

[stolzyboy]

if your id is coming thru the URL like:

page.php?id=34

then you can access it via this method

$id = $_GET['id'];

[isar21]

<input name="id" type="hidden" value="<?=$id?>">

did the trick.

thanks a lot !

isar