/**
* @return WP_Term[]
*/
public function getAllCategories()
{
if (!$this->_cache->containsKey('allCategories')) {
$categories = $this->_wpFunctions->get_categories(array('hide_empty' => false));
$this->_cache->put('allCategories', $categories);
}
return $this->_cache->get('allCategories');
}
