How can I get a list of all languages translation that a node has?

Question

I'm trying to get a list of language translations that a node has in theme_preprocess_node(). I have the node object and can check for a translation on a one-by-one basis, if I have the list of languages. What I need is a list of all the translations for the node.

Answer 1

Use getTranslationLanguages():

$languages = $node->getTranslationLanguages();

foreach ($languages as $id => $language) {
  print $node->getTranslation($id)->label();
}