On Fri, Jul 12, 2002 at 10:59:00PM -0400, Blue Presley wrote:
> Hello. I have a form that I would like to use checkboxes.
> ... snip ...
> I've been told that if I want to manipulate each
> one then I should use 'name=checkbox[]' and make an array out of it. okay,
> fine. but how do i access them in my PHP script? I know I have to use the
> $_POST[] array, but this creates a multidiminsional array, yes? do i access
> it like $_POST[checkbox[1]]?? or $_POST[checkbox][1]??
The latter. But note, if a box isn't checked, it's not going to be
sent, so won't be in the array.
<form>
<input type="checkbox" name="StateID[]" value="32" /> NV
<input type="checkbox" name="StateID[]" value="33" checked /> NH
<input type="checkbox" name="StateID[]" value="34" checked /> NJ
</form>
In this case $_POST['checkbox'][0] would be 33 and ...[1] would be 34.
Sometimes it's handy to identify the key upfront:
<form>
<input type="checkbox" name="StateID[32]" value="608" /> NV
<input type="checkbox" name="StateID[33]" value="2" /> NH
<input type="checkbox" name="StateID[34]" value="40" checked /> NJ
</form>
That would yield $_POST['checkbox']['34'] = 40.
A nice way to handle incomming checkboxes is this:
while ( list($Key, $Val) = each($checkbox) ) {
# do what you need to do...
# for example, show what was sent...
echo "<br />$Key = $Val\n";
}
Enjoy,
--Dan
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