Is it possible to force previous/next navigation to browse through the posts (back and forth) that are only inside the same category (and to exclude other categories)?
The functions accept an $in_same_cat argument, the default value of which is false. Just set that to true.
previous_post_link($format, $link, true);
next_post_link($format, $link, true);
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Thanks! My wife asked for this and your answer made it a 10 minutes job to customize my child theme! – ajh158 Sep 5 '14 at 2:10
You can use the following code in single.php loop to display nex/pre links in same category
<?php
get_template_part( 'content', get_post_format() );
// Previous/next post navigation.
previous_post_link('%link', 'Before', true );
next_post_link( '%link', 'Next', true );
?>
