Нужно получить список категорий таксономии соблюдая иерархию

Вот функцию нашел в сети, которая собирает массив терминов с учетом вложенности:

/**
 * Recursively sort an array of taxonomy terms hierarchically. Child categories will be
 * placed under a 'children' member of their parent term.
 * @param Array   $cats     taxonomy term objects to sort
 * @param Array   $into     result array to put them in
 * @param integer $parentId the current parent ID to put them in
 */
function sort_terms_hierarchicaly( & $cats, & $into, $parentId = 0 ){
	foreach( $cats as $i => $cat ){
		if( $cat->parent == $parentId ){
			$into[ $cat->term_id ] = $cat;
			unset( $cats[$i] );
		}
	}

	foreach( $into as $top_cat ){
		$top_cat->children = array();
		sort_terms_hierarchicaly( $cats, $top_cat->children, $top_cat->term_id );
	}
}

Используем так:

$categories = get_terms('category', array('hide_empty' => false));
$cat_hierarchy = array();
sort_terms_hierarchicaly( $categories, $cat_hierarchy );

print_r( $cat_hierarchy );

Получим массив:

Array
(
	[1] => WP_Term Object
		(
			[term_id] => 1
			[name] => Не WordPress
			[slug] => raznoe
			[term_group] => 0
			[term_taxonomy_id] => 1
			[taxonomy] => category
			[description] => 
			[parent] => 0
			[count] => 8
			[filter] => raw
			[term_order] => 1
			[children] => Array
				(
					[33] => WP_Term Object
						(
							[term_id] => 33
							[name] => Полезные мелочи
							[slug] => poleznyie-melochi
							[term_group] => 0
							[term_taxonomy_id] => 33
							[taxonomy] => category
							[description] => 
							[parent] => 1
							[count] => 9
							[filter] => raw
							[term_order] => 1
							[children] => Array
								(
								)

						)

				)

		)

	[3] => WP_Term Object
		(
			[term_id] => 3
			[name] => WordPress
			[slug] => wordpress
			[term_group] => 0
			[term_taxonomy_id] => 3
			[taxonomy] => category
			[description] => 
			[parent] => 0
			[count] => 0
			[filter] => raw
			[term_order] => 2
			[children] => Array
				(
					[1037] => WP_Term Object
						(
							[term_id] => 1037
							[name] => Темы WordPress
							[slug] => temy-wordpress
							[term_group] => 0
							[term_taxonomy_id] => 1045
							[taxonomy] => category
							[description] => 
							[parent] => 3
							[count] => 3
							[filter] => raw
							[term_order] => 0
							[children] => Array
								(
								)

						)

					[5] => WP_Term Object
						(
							[term_id] => 5
							[name] => Авторские Функции
							[slug] => functions
							[term_group] => 0
							[term_taxonomy_id] => 5
							[taxonomy] => category
							[description] => 
							[parent] => 3
							[count] => 15
							[filter] => raw
							[term_order] => 1
							[children] => Array
								(
								)

						)

				)

		)

)

Остается его обработать и вывести что нужно... Больше не подскажу, сорри...