Try this code:
<?php
function MYMODULE_myform($form, &$form_state) {
$form['myfield'] = array(
'#type'=> 'textfield',
'#title'=> 'MyField',
);
$form['actions'] = array('#type'=> 'actions');
$form['actions']['submit'] = array(
'#type'=> 'submit',
'#value'=> t('Submit'),
);
return $form;
}
function MYMODULE_myform_submit($form, &$form_state) {
$form_state['values']['myfield'] = 'my value';
$form_state['rebuild'] = TRUE;
}
?>When submitting, I expect form to get rebuilt showing 'my value' as value for field myfield.
But it does not work.
It seems that $form_state['values'] is not used but $form_state['input'].
This is not documented anywhere.
What are supposed to do if we want to change values between form submit and form rebuild then?