Problem about hidden type in Drupal form API

you might want to post your code to make it clearer.

I have this problem also.

I have a hidden field in the form, and on the UI I manipulate the value of that field (using javascript) to send something different back.
On submit, the FORM API decides that seeing as the field was hidden, the user should not have been messing with it, and sets the value back to default before I can process it.
Inspecting the $_POST shows the value was changed and sent, but inspecting the $form_values shows it was ignored.

I'm thinking of trying the SKIP_SAFETY_CHECK or whatever that thing is called.

(FWIW, my hidden field is a response to some dynamic form manipulation where I want to delete a chunk of fields, and leave a 'deleted' flag behind to let my system know it's gone, not just ignored. )

.dan.
How to troubleshoot Drupal | http://www.coders.co.nz/

Because hidden uses #value instead of #default_value, the user cannot change the value - this concerns javascript too.

So I used an hidden textfield for my needs (I need it for saving values of multiple select fields in one string):

$form['foo'] = array(
    '#type' => 'textfield',
    '#attributes'=>array('style'=>"display:none"),
    '#default_value' => $node->foo
  );

This works fine and you don't have to change the values in submit and you are able to look at them in preview.

But i found the easiest solution for my needs was to define the form field with no value. Simply:

$form['myHiddenField'] = array('#type' => 'hidden');

Then I set the values by javascript and it works the way I expect.

As per the Form API docs: If you use #value, that value will be reset. To place a value in a hidden field and allow it to be replaced by javascript, use #default_value.

http://api.drupal.org/api/drupal/developer%21topics%21forms_api_referenc...

My Bad, Tried all of the given options, but still i am not able to print the hidden value in array, after submitting the form.

Code here :

var children = $('input:radio[name=do_you_have_children]:');
children.change(function () {
if ($('input:radio[name=do_you_have_children]:checked').val() === 'Yes') {
appendHiddenVal();
}
function appendHiddenVal(){
console.log('added---')
$('#edit-baby-first-name').on('blur', function() {
fnameVl = $(this).val()
alert(fnameVl);
appendHidden = $('').attr({
type: 'text',
id: 'foo',
name: 'baby_first_name11',
value: fnameVl
}).appendTo('#my-form');
console.log("appendHidden --- " + appendHidden);
});
}

// PHP code from my submit function

}

Any Other solution..

Thanks!!!