wp_get_term_taxonomy_parent_id() WordPress Function

The wp_get_term_taxonomy_parent_id() function is used to get the parent term taxonomy ID for a given term taxonomy ID. This function can be useful when you need to know the parent term taxonomy ID for a given term taxonomy, for example when displaying a list of terms with their parent term taxonomies.

wp_get_term_taxonomy_parent_id( int $term_id, string $taxonomy ) #

function wp_get_term_taxonomy_parent_id( $term_id, $taxonomy ) {
	$term = get_term( $term_id, $taxonomy );
	if ( ! $term || is_wp_error( $term ) ) {
		return false;
	}
	return (int) $term->parent;
}