function theme_container

Returns HTML to wrap child elements in a container.

Used for grouped form items. Can also be used as a theme wrapper for any renderable element, to surround it with a <div> and add attributes such as classes or an HTML ID.

See the Form API reference for more information on the #theme_wrappers render array property.


$variables: An associative array containing:

  • element: An associative array containing the properties of the element. Properties used: #id, #attributes, #children.

Related topics


drupal/includes/, line 3405
Functions for form and batch generation and processing.


function theme_container($variables) {
  $element = $variables['element'];

  // Ensure #attributes is set.
  $element += array(
    '#attributes' => array(),

  // Special handling for form elements.
  if (isset($element['#array_parents'])) {

    // Assign an html ID.
    if (!isset($element['#attributes']['id'])) {
      $element['#attributes']['id'] = $element['#id'];

    // Add the 'form-wrapper' class.
    $element['#attributes']['class'][] = 'form-wrapper';
  return '<div' . drupal_attributes($element['#attributes']) . '>' . $element['#children'] . '</div>';