Get Title for the Top Level Parent Page Still working on this

functions.php

<?php


function get_top_level_parent_title() {
global $post;
        if ( empty($post->post_parent) )
		{ the_title(); }
	else {
		$ancestors = get_post_ancestors($post->ID);
		end($ancestors);
			echo get_the_title($ancestors[0]);
	}
}