function BlockRenderAlterContent::preRender

#pre_render callback for a block to alter its content.

File

core/modules/block/tests/modules/block_test/src/BlockRenderAlterContent.php, line 15

Class

BlockRenderAlterContent

Implements a trusted preRender callback.

Namespace

Code

public static function preRender(array $build) {
  $build['#prefix'] = 'Hiya!<br>';
  return $build;
}