'hidden',
'#value' => 'multiform',
'#id' => drupal_html_id("edit-multiform"),
'#name' => 'form_id',
'#attributes' => array(),
);
$build_id = 'form-' . md5(uniqid(mt_rand(), TRUE));
// We need a $form_build_id because the buttons are cached and the values
// belonging to them in $_POST are handed to each form so those can recognize
// the buttons pressed.
$form['form_build_id'] = array(
'#type' => 'hidden',
'#value' => $build_id,
'#id' => $build_id,
'#name' => 'form_build_id',
'#attributes' => array(),
);
// This is where buttons will be collected.
$form['buttons'] = array();
$form['buttons']['#weight'] = 1000;
$form_state_save = array();
$button_names = array();
// The only way to support $_GET would be to accept $form_state. Maybe later.
if ($_POST && $_POST['form_id'] == 'multiform' && !empty($_POST['form_build_id'])) {
$form_state_save['input'] = $_POST;
$_files_save = $_FILES;
// Retrieve buttons.
if ($button_elements = form_get_cache($_POST['form_build_id'], $form_state_save)) {
foreach ($button_elements as $button) {
// For each button, save it's name. Later on we will need the button
// names because the buttons are used in the multiform but their values
// in $_POST (if it exists) needs to be handed down to each form so
// those can recognize the button press.
$name = isset($button_elements['#name']) ? $button_elements['#name'] : 'op';
$button_names[$name] = $name;
}
}
}
foreach ($all_args as $key => $args) {
$form_id = array_shift($args);
// Reset $form_state and disable redirection.
$form_state = array('no_redirect' => TRUE);
// This line is copied literally from drupal_get_form().
$form_state['build_info']['args'] = $args;
$index = $form_id . '_' . $key;
if (isset($form_state_save['input']['multiform'][$index])) {
// drupal_build_form() honors our $form_state['input'] setup.
$form_state['input'] = $form_state_save['input']['multiform'][$index];
// Pass in the information about pressed buttons too.
foreach ($button_names as $name) {
if (isset($form_state_save['input'][$name])) {
$form_state['input'][$name] = $form_state_save['input'][$name];
}
}
}
if (isset($_files_save['multiform']['name'][$index])) {
$_FILES = array();
foreach (array('name', 'type', 'tmp_name', 'error', 'size') as $files_key) {
// PHP is seriously messed up, dude.
foreach ($_files_save['multiform'][$files_key][$index] as $running_out_of_indexes => $data) {
$_FILES[$running_out_of_indexes][$files_key] = $data;
}
}
}
// Build and process this form.
$current_form = drupal_build_form($form_id, $form_state);
// Do not render the