This always works for me..
==========================================
/* -------------------------------------------------------- *\
** chk[] is the list of check boxes sent to browser.
** If chk[$i] equals $i as as you loop
**
through the array.. then it was checked.
** But first we need to set all the boxes that
**
ain't checked to -1 or something other than $i
**
$num_chk = number of $chk[] boxes sent
\* -------------------------------------------------------- */
for ($i=$num_chk; $i>-1 ; $i--) {
if (!isset($chk[$i])) $chk[$i] = -1;
else {
$ii = $chk[$i];
$chk[$i] = -1;
$chk[$ii] = $ii;
}
}
/* Now you can loop through the chk[]
** list and find out what ones were set
*/
=============================================================
HTH. Good luck ... Dan
Dirk Beijaard wrote:
> Hey all,
>
> I have a form, generated in php, with a lot of checkboxes on it. They
> are initialized from the db. All checkboxes are in a 2d array and they
> come through to my processing script fine. The only problem is that
> the ones that are unchecked do not come through. I know that the post
> command only sends the checked boxes. What I would like to know is which
> ones were changed, ie checked or unchecked by the user. Right now I do
> it by putting a string with the old values in a hidden textbox and
> comparing those to what I get back in the array. I have been thinking
> about writing some client side script to produce the differences.
>
> Does anyone know if there is a better way to do this?
>
> Thanks,
> Dirk.
>
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