4.7.x form.inc form_options_flatten($array, $reset = TRUE)
5.x form.inc form_options_flatten($array, $reset = TRUE)
6.x form.inc form_options_flatten($array, $reset = TRUE)
7.x form.inc form_options_flatten($array)

Related topics

2 calls to form_options_flatten()
node_filter_form_submit in modules/node/node.admin.inc
Process result from node administration filter form.
_form_validate in includes/form.inc
Performs validation on form elements. First ensures required fields are completed, #maxlength is not exceeded, and selected options were in the list of options given to the user. Then calls user-defined validators.


includes/form.inc, line 1470


function form_options_flatten($array, $reset = TRUE) {
  static $return;

  if ($reset) {
    $return = array();

  foreach ($array as $key => $value) {
    if (is_object($value)) {
      form_options_flatten($value->option, FALSE);
    else if (is_array($value)) {
      form_options_flatten($value, FALSE);
    else {
      $return[$key] = 1;

  return $return;