function form_process_checkboxes in Drupal 7

Processes a checkboxes form element.

Related topics

1 string reference to 'form_process_checkboxes'

system_element_info in modules/system/system.module

Implements hook_element_info().

File

includes/form.inc, line 3324

Functions for form and batch generation and processing.

Code

function form_process_checkboxes($element) {
  $value = is_array($element['#value']) ? $element['#value'] : array();
  $element['#tree'] = TRUE;
  if (count($element['#options']) > 0) {
    if (!isset($element['#default_value']) || $element['#default_value'] == 0) {
      $element['#default_value'] = array();
    }
    $weight = 0;
    foreach ($element['#options'] as $key => $choice) {

      // Integer 0 is not a valid #return_value, so use '0' instead.
      // @see form_type_checkbox_value().
      // @todo For Drupal 8, cast all integer keys to strings for consistency
      //   with form_process_radios().
      if ($key === 0) {
        $key = '0';
      }

      // Maintain order of options as defined in #options, in case the element
      // defines custom option sub-elements, but does not define all option
      // sub-elements.
      $weight += 0.001;
      $element += array(
        $key => array(),
      );
      $element[$key] += array(
        '#type' => 'checkbox',
        '#title' => $choice,
        '#return_value' => $key,
        '#default_value' => isset($value[$key]) ? $key : NULL,
        '#attributes' => $element['#attributes'],
        '#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
        '#weight' => $weight,
      );
    }
  }
  return $element;
}