How to give a value to non selected checkbox

[M]

Hello,

I would like to get a value for a non selected checkbox in a form.

Imagine my form contains :

<input type='checkbox' name='t[0]' value='1'>
<input type='checkbox' name='t[1]' value='1'>

When I analyse $t, if first checkbox is not selected and second is, I have :
$t[0] has no value. $t[1] equals 1
and count($t) equals 1

I would like to find a way to get :
$t[0] equals 0. $t[1] equals 1
and count($t) equals 2

Any idea ?

Thanx
M

[strawberry]

Re: How to give a value to non selected checkbox

Can you explain why you want to get the value? It might help with the
answer.

[Ken Robinson]

Re: How to give a value to non selected checkbox


M wrote:[color=blue]
> Hello,
>
> I would like to get a value for a non selected checkbox in a form.
>
> Imagine my form contains :
>
> <input type='checkbox' name='t[0]' value='1'>
> <input type='checkbox' name='t[1]' value='1'>
>
> When I analyse $t, if first checkbox is not selected and second is, I have :
> $t[0] has no value. $t[1] equals 1
> and count($t) equals 1
>
> I would like to find a way to get :
> $t[0] equals 0. $t[1] equals 1
> and count($t) equals 2[/color]

You can "pre-initialize the values by using a hidden field. That way if
the checkbox isn't checked, the value from the hidden field will get
passed back. If it is checked, you get the checked value:

<input type="hidden" name="t[0]" value="0">
<input type="hidden" name="t[1]" value="0">
<input type='checkbox' name='t[0]' value='1'>
<input type='checkbox' name='t[1]' value='1'>

Ken

[M]

Re: How to give a value to non selected checkbox

Thank you Ken.
This is *exactly* what I needed.

M
[color=blue]
> M wrote:[color=green]
>> Hello,
>>
>> I would like to get a value for a non selected checkbox in a form.
>>
>> Imagine my form contains :
>>
>> <input type='checkbox' name='t[0]' value='1'>
>> <input type='checkbox' name='t[1]' value='1'>
>>
>> When I analyse $t, if first checkbox is not selected and second is, I have :
>> $t[0] has no value. $t[1] equals 1
>> and count($t) equals 1
>>
>> I would like to find a way to get :
>> $t[0] equals 0. $t[1] equals 1
>> and count($t) equals 2[/color]
>
> You can "pre-initialize the values by using a hidden field. That way if
> the checkbox isn't checked, the value from the hidden field will get
> passed back. If it is checked, you get the checked value:
>
> <input type="hidden" name="t[0]" value="0">
> <input type="hidden" name="t[1]" value="0">
> <input type='checkbox' name='t[0]' value='1'>
> <input type='checkbox' name='t[1]' value='1'>
>
> Ken
>[/color]

[Marcin Dobrucki]

Re: How to give a value to non selected checkbox

M wrote:
[color=blue]
> I would like to get a value for a non selected checkbox in a form.[/color]

Have a look at the Javascript code generated by PEAR::QuickForm for
the advcheckbox element.

/Marcin