I am trying to change the links of the Language Switcher module. I am using the following code, but it doesn't work.

function mytheme_links__language_block(&$variables) {
  // Change variables
  return $variables;

When it gets executed, I get the following error:

Notice: Array to string conversion in Drupal\Core\Render\Markup::create() (line 38 of core/lib/Drupal/Component/Render/MarkupTrait.php).

What is wrong? How could I return altered variables?

  • Your alteration code could cause the problem. Please add it as well. – Eyal Mar 4 '17 at 10:52

The problem is solved by just using another hook

function mytheme_preprocess_links__language_block(&$variables)
    $variables['links']['en']['link']['#title'] = "ENG";


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