Disable “previous link” in first post and “next link” in last post

Question

how can I disable "previous link" in first post and "next link" in last post? thank you

Answer 1

<?php next_post_link('format', 'link', 'in_same_cat', 'excluded_categories'); ?> 

<?php previous_post_link($format, $link, $in_same_cat = false, $excluded_categories = ''); ?>

Answer 2

Just use this, no extra functions required:

<div class="previous-post"> <?php previous_post_link(' &laquo;%link ') ?> </div>
<div class="next-post"> <?php next_post_link(' %link &raquo; ') ?> </div>

Just add this to the single.php, not the index.php. This is the simple way to show in single posts only (this won't show the prev. post link on the last post, on the first post there won't be a next post).