[PHP] checkboxes / form elements
Hello. I have a form that I would like to use checkboxes. these checkboxes are created dynamically. 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]?? any info is appreciated. thanks, blue -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
RE: [PHP] checkboxes / form elements
Hello. I have a form that I would like to use checkboxes. these checkboxes are created dynamically. 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]?? Yes, the second one, only with single quotes. $_POST['checkbox][1] Note that arrays start at zero, too. ---John Holmes... -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP] checkboxes / form elements
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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Re: [PHP] checkboxes / form elements
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Analysis Solutions wrote:
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;
}
Just one thing, as someone noted a week ago or so, you can't use the []
syntax *and* javascript. If you also need to process your checks from
jscript side you shall resort to some older method and have your
variables called like
input type=checkbox name=StateID_32 value=608 / NV
input type=checkbox name=StateID_33 value=608 / NV
then process it with variable variable names (the $$ syntax).
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