_form_options_flatten

Iterates over an array and returns a flat array with duplicate keys removed.

This function also handles cases where objects are passed as array values.

Related topics

Form generation

Functions to enable the processing and display of HTML forms.

1 call to _form_options_flatten()

1 string reference to '_form_options_flatten'

File

includes/form.inc, line 2527

Functions for form and batch generation and processing.

Code

function _form_options_flatten($array) {
  $return = &drupal_static(__FUNCTION__);

  foreach ($array as $key => $value) {
    if (is_object($value)) {
      _form_options_flatten($value->option);
    }
    elseif (is_array($value)) {
      _form_options_flatten($value);
    }
    else {
      $return[$key] = 1;
    }
  }

  return $return;
}