Don't name the checkboxes all the same, instead:
Option1 <input type="checkbox" name="ck0"><br>
Option2 <input type="checkbox" name="ck1"><br>
Option3 <input type="checkbox" name="ck2"><br>
Then handle it with
function getCheckboxResults($prefix=FALSE)
{
global $_POST ;
$results = NULL ; // needed for 'return' in case no items (v4.1.x)
if(is_string($prefix)){
For($i=0;$i<=count($_POST);$i++){
if(isset($_POST[$prefix.$i])) $results[] = $i ;
}
} else { return -1 ; } // throw exception in script
return $results ;
}
$selectedCKItems = getCheckboxResults('ck');
if(!$selectedCKItems) makeError('Please select at least one item.');
If a checkbox is not selected, the CGI will drop it (as in, not pass on the
name/value pair - meaning the name is not there - which is why you test for
it's existance).
I didn't test that example. But if it works, the function might be a nice
addition to your (and mine) library :)
you might use it like to:
$prefix = 'ck';
Forech($arrLabels AS $i=>$label)
printf('%s <input type="checkbox" name="%s%d"><br>\n',$label,$prefix,$i);
Then put this member functions in a class deinition and register instatiated
objects with a session to use them across pages. $arrLabels would be a
property of the class. 'ck' would be the value of another property. Maybe
your foreach statement was in a member function.
OK, I'll shut up now :)
[TK]
> -----Original Message-----
> From: Erik Price [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, 5 March 2002 2:24 AM
> To: bvr
> Cc: Ben Turner; [EMAIL PROTECTED]
> Subject: Re: [PHP] CheckBoxes....
>
>
>
> On Sunday, March 3, 2002, at 11:15 AM, bvr wrote:
>
> > If you append '[]' to the name, an array will be returned
> after submit
> > with the values of the checked checkboxes.
> >
>
>
> Is there any other way of doing this? Using the brackets at
> the end of
> the input's name is super-convenient, making it relatively
> easy to work
> with arrays and user input in PHP. I love that. But I also wish I
> could validate my pages as XHTML Strict. I know it's not
> really a big
> deal, it's just a pride-in-work thing.
>
> Alternatively, is there any plans to change the DTD for XHTML
> Strict to
> allow brackets? IMO it's not something that cause problems
> if it were
> to be supported. Kind of lame that it's not, actually.
>
> Until then, I'll keep using them (brackets) b/c there's some
> things that
> it seems I can't do without this technique, but it would be nice....
>
>
> Erik
>
>
>
>
> ----
>
> Erik Price
> Web Developer Temp
> Media Lab, H.H. Brown
> [EMAIL PROTECTED]
>
>
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