The #lazy_builder callback; returns the current count.

Return value

array The render array.

See also

\Drupal\Tests\big_pipe\Functional\BigPipeTest::testBigPipeMultiOccurrencePlaceholders()

File

core/modules/big_pipe/tests/modules/big_pipe_test/src/BigPipeTestController.php, line 220

Class

BigPipeTestController

Returns responses for Big Pipe routes.

Namespace

Drupal\big_pipe_test

Code

public static function counter() {
  // Lazy builders are not allowed to build their own state like this function
  // does, but in this case we're intentionally doing that for testing
  // purposes: so we can ensure that each lazy builder is only ever called
  // once with the same parameters.
  static $count;
  if (!isset($count)) {
    $count = 0;
  }
  $count++;
  return [
    '#markup' => BigPipeMarkup::create("<p>The count is {$count}.</p>"),
    '#cache' => [
      'max-age' => 0,
    ],
  ];
}

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