Create Related Posts with Meta Box Plugin

<?php 
		$field_id = 'related_posts';
		$related_posts = rwmb_meta( $field_id );
		if (isset($related_posts)) { ?>
			<div id="relatedPosts" class="related-posts">
    			<h3 class="related-posts-headline"><em>You might also like</em></h3>
				<div class="related-posts-items jp-related-posts-grid"> 
					<?php foreach ($related_posts as $related_post) { ?>
						<div class="related-post-item">
							<a class="related-post-a" href="<?php echo get_the_permalink($related_post); ?>" title="<?php echo get_the_title($related_post); ?>" rel="nofollow">
								<img class="related-post-img" src="<?php echo get_the_post_thumbnail_url($related_post, 'thumbnail'); ?>" alt="<?php echo get_the_title($related_post); ?>">
							</a>
				            <h4 class="related-post-title">
				            	<a class="related-post-a" href="<?php echo get_the_permalink($related_post); ?>" title="<?php echo get_the_title($related_post); ?>" rel="nofollow"><?php echo get_the_title($related_post); ?></a>
				            </h4>
				            <p class="related-post-excerpt"><?php the_excerpt($related_post); ?></p>
				        </div>

					<?php } ?>
				</div>
			</div>	 
	<?php } ?>