3
In addition to @sonfd answer you also need to consider caching. The easiest way would be to add a cache context:
$variables['#cache']['contexts'][] = 'user';
But then the database needs to store a cached version for each user.
Better for performance would be to postpone replacing the placeholder by attaching a lazy builder to the render array:
function ...
2
I was able to use hook_entity_field_access and return an AccessResult $result->addCacheContexts(['session', 'user.roles.anonymous'])
1
Recommend using @4k4's answer instead.
There are a few issues here:
You're setting your $body variable, but not setting the change in your $variables array. You can fix this by using a reference, update with $body = &$variables['content']['body'][0]['#text'];
You're replacing with the user object rather than the user id. You can't insert an object into ...
1
By implementing hook_link_alter in either a custom module or your theme.
The code (untested) would be similar to:
/**
* Implements hook_link_alter().
*/
function MODULE/THEME_link_alter(&$variables) {
if (isset($variables['options']['attributes']['target']) && $variables['options']['attributes']['target'] == '_blank') {
$variables['...
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