A '#pre_render' function.

Parameters

array $element: The element which will be rendered.

Return value

array The altered element. In this case we add the #markup.

Related topics

Example: Render
Demonstrate how render arrays are arranged and how they can be altered. This alters blocks and the page to show the actual render array that is being used to create each item.
1 string reference to 'render_example_cache_pre_render'
render_example_arrays in render_example/render_example.module
Provides a number of render arrays and show what they do.

File

render_example/render_example.module, line 188
Demonstrates render arrays.

Code

function render_example_cache_pre_render($element) {
  $element['#markup'] = render_example_cache_expensive();

  // The following line is due to the bug described in
  // http://drupal.org/node/914792. A #markup element's #pre_render must set
  // #children because it replaces the default #markup pre_render, which is
  // drupal_pre_render_markup().
  $element['#children'] = $element['#markup'];
  return $element;
}