function render in Drupal 9

Same name and namespace in other branches

1. 8 core/includes/common.inc \render()
2. 7 includes/common.inc \render()

Renders an element.

This function renders an element. The top level element is shown with show() before rendering, so it will always be rendered even if hide() had been previously used on it.

Parameters

$element: The element to be rendered.

Return value

The rendered element.

See also

https://www.drupal.org/node/2939099

\Drupal\Core\Render\RendererInterface

show()

hide()

1 call to render()

RenderDeprecationController::buildRenderFunction in core/modules/system/tests/modules/render_deprecation/src/RenderDeprecationController.php

19 string references to 'render'

CacheFactoryTest::testCacheFactoryWithCustomizedDefaultBackend in core/tests/Drupal/Tests/Core/Cache/CacheFactoryTest.php

Tests that the cache factory falls back to customized default service.

CacheFactoryTest::testCacheFactoryWithDefaultBinBackend in core/tests/Drupal/Tests/Core/Cache/CacheFactoryTest.php

Tests that the cache factory uses the correct default bin backend.

CacheFactoryTest::testCacheFactoryWithDefaultSettings in core/tests/Drupal/Tests/Core/Cache/CacheFactoryTest.php

Tests that the cache factory falls back to the built-in default service.

CacheFactoryTest::testCacheFactoryWithSpecifiedPerBinBackend in core/tests/Drupal/Tests/Core/Cache/CacheFactoryTest.php

Tests that the cache factory picks the correct per-bin service.

ClearTest::setUp in core/modules/system/tests/src/Functional/Cache/ClearTest.php

... See full list

File

core/includes/common.inc, line 393

Common functions that many Drupal modules will need to reference.

Code

function render(&$element) {
  @trigger_error('The render() function is deprecated in drupal:9.3.0 and is removed from drupal:10.0.0. Use \\Drupal\\Core\\Render\\RendererInterface::render() instead. See https://www.drupal.org/node/2939099', E_USER_DEPRECATED);
  if (!$element && $element !== 0) {
    return NULL;
  }
  if (is_array($element)) {

    // Early return if this element was pre-rendered (no need to re-render).
    if (isset($element['#printed']) && $element['#printed'] == TRUE && isset($element['#markup']) && strlen($element['#markup']) > 0) {
      return $element['#markup'];
    }
    show($element);
    return \Drupal::service('renderer')
      ->render($element);
  }
  else {

    // Safe-guard for inappropriate use of render() on flat variables: return
    // the variable as-is.
    return $element;
  }
}