WP ACF Relationship

acfrelationship.txt

<?php $posts = get_field('relationship_field_name'); ?>
<?php if( $posts ): ?>
	<ul>
	<?php foreach( $posts as $post): ?>
		<?php setup_postdata($post); ?>
		<li>
			<a href="<?php the_permalink(); ?>"><?php the_title(); ?></a>
			<span>Custom field from $post: <?php the_field('author'); ?></span>
		</li>
	<?php endforeach; ?>
	</ul>
	<?php wp_reset_postdata(); ?>
<?php endif; ?>