7 common.inc drupal_render_children(&$element, $children_keys = NULL)
8 common.inc drupal_render_children(&$element, $children_keys = NULL)

Renders children of an element and concatenates them.


array $element: The structured array whose children shall be rendered.

array $children_keys: (optional) If the keys of the element's children are already known, they can be passed in to save another run of \Drupal\Core\Render\Element::children().

Return value

string|\Drupal\Component\Render\MarkupInterface The rendered HTML of all children of the element.

See also


1 call to drupal_render_children()
Toolbar::preRenderToolbar in core/modules/toolbar/src/Element/Toolbar.php
Builds the Toolbar as a structured array ready for drupal_render().


core/includes/common.inc, line 889
Common functions that many Drupal modules will need to reference.


function drupal_render_children(&$element, $children_keys = NULL) {
  if ($children_keys === NULL) {
    $children_keys = Element::children($element);
  $output = '';
  foreach ($children_keys as $key) {
    if (!empty($element[$key])) {
      $output .= drupal_render($element[$key]);
  return Markup::create($output);