Change Drupal 8 'Powered By' block | Drupal 8

Change Drupal 8 'Powered By' block

Submitted by editor on Tue, 05/31/2016 - 13:30

How to edit the Drupal 8 system's "Powered By" block ?

You can't change the body of this block fron the user interface. But you can do that using a small custom module using hook_block_view_alter().

Example: in the yourmodule.module

function yourmodule_block_view_alter(array &$build, \Drupal\Core\Block\BlockPluginInterface $block) {
  if ($block->getBaseId() === 'system_powered_by_block') {
    $build['#pre_render'][] = '_yourmodule_block_poweredby_prerender';

function _yourmodule_block_poweredby_prerender(array $build) {
    $build['content']['#markup'] = 'Your text';
    return $build;

Then clear the cache

NOTE: You can also remove the system 'Powered by Drupal' block and replace by a custom block.


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