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Get taxonomy terms

I wanted to retrieve taxonomy terms from a certain vocabulary in Drupal 8.

Apparently I can still do it using taxonomy_get_tree but it’s deprecated.

I now have to use TermStorageInterface::loadTree

I am trying to access this function from a Block but I don’t understand how to instantiate the TermStorageInterface class.

I tried accessing the function directly but it’s not a static function : 

TermStorageInterface::loadTree('categories')

I tried instantiating the class but it told me Cannot instantiate interface DrupaltaxonomyTermStorageInterface

$test = new TermStorageInterface();

I don’t understand how this class works and how I can access taxonomy links. I think I’m missing a big part of understanding how Drupal works.

This article was republished from its original source.
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Get taxonomy terms

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