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Posted by "g.gill" on 08/01/05 09:49
From what I understand the simplest solution here would be to check to see
if you have $_POST['cb'] in the first place. That would indicate if
checkbox was selected or not. After, you have posted the form just do the
following test.
$check_box_exits = ((isset($_POST['cb']))? true:false);
hope this helps...
-sonu
"Jack Jackson" <jackson.linux@gmail.com> wrote in message
news:42EDA6B7.2090701@gmail.com...
> hi,
> I have checkboxes beging dynamically generated. to seperate tasks in error
> checking I have added he arrays not just to $_POST but to $_POST[cb] so
> names (derived from question numbers) are for example:
>
> $_POST[cb][7]
>
> A dump of $_POST would therefore include something like
>
> ["cb"]=> array(1) { [7]=> array(1) { [0]=> string(3) "124" } }
>
> So I did this:
>
> //error checking for checkboxes foreach ($cb as $cbkey => $cbvalue)
> {
> foreach($cbvalue as $cbkey2=>$cb_answers)
> {
> if( !array_key_exists($_POST[$cbkey], $cb));
> {
> $message[$cbkey]=1;
> }
> }
> }
>
> This almost works. The problem is that if someone doesn't check a
> checkbox, NOTHING related to the checkbox gets sent to $_POST; if I insert
> a hidden value of something, then that hidden value gets passed whether
> the user inputs something or not, since I need an entirely server-side
> solution. Is there a way to send something to tell the error checker
> whether for example $_POST[cb][7] is empty or null, so I can set the error
> message to one if it's empty?
>
> Dump of $_POST with no checkboxes checked
> $_POST:
> array(4) { ["action"]=> string(7) "process" ["cat"]=> string(1) "2"
> ["rs"]=> array(3) { [5]=> string(0) "" [6]=> string(0) "" [9]=> string(0)
> "" } ["b"]=> string(8) "Continue" }
>
> Dump of $_POST with checkboxes checked
>
> array(5) { ["action"]=> string(7) "process" ["cat"]=> string(1) "2"
> ["cb"]=> array(2) { [7]=> array(5) { [0]=> string(1) "3" [1]=>
> string(3) "124" [2]=> string(3) "125" [3]=> string(3) "127" [4]=>
> string(3) "131" } [8]=> array(3) { [0]=> string(3) "141" [1]=> string(3)
> "145" [2]=> string(1) "4" } } ["rs"]=> array(3) { [5]=> string(0) ""
> [6]=> string(0) "" [9]=> string(0) "" } ["b"]=> string(8) "Continue" }
>
>
> Thanks so much In advance
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