Wodpress next and previous post navigation is very important to increase visitor spending time on your site.
TO show the next and previous post we can use this code in any single.php page. First, let’s call 2 variable
<?php
$previous = get_previous_post();
$next = get_next_post();
?>
Then use this code for previous post
<?php if ( get_previous_post() ) {?>
<a href="<?php echo get_the_permalink($previous) ?>">
<img src="<?php echo get_the_post_thumbnail_url($previous) ?>" alt="">
<div>
<h3> <?php echo get_the_title($previous) ?></h3>
<p> PREV</p>
</div>
</a>
<?php }?>
This one for Next post of that post type
<?php if ( get_next_post() ) {?>
<a href="<?php echo get_the_permalink($next) ?>">
<img src="<?php echo get_the_post_thumbnail_url($next) ?>" alt="">
<div>
<h3> <?php echo get_the_title($next) ?></h3>
<p>Next</p>
</div>
</a>
<?php }?>
That’s simple. It work on custom post single page too. 😉