Excluding a category from next and previous post links

Question

I am trying to figure out the code to exclude a category from my next and previous post links.

My code for the next and previous is as follows:

<div class="next_prev_cont">
                    <div class="left">
                         <?php previous_post_link('%link', '<i>Previous post</i><br />%title'); ?> 
                    </div>
                    <div class="right">
                         <?php next_post_link('%link', '<i>Next post</i><br />%title'); ?> 
                    </div>
                    <div class="clear"></div>
                </div><!--//next_prev_cont-->

I believe I need to use the following: $excluded_terms = '4835'

4835 being the cat ID, but I'm not sure how to implement it? Any help is greatly appreciated!

Answer 1

The next_post_link() and previous_post_link() functions have parameteres as follows -

• $format (string) - You've already included this.

• $link (string) - You've already included this.

• $in_same_term = false (boolean) - Whether or not all linked posts should be within the same taxonomy term. Chances are this should be false if you are looking to exclude a single term.

• $excluded_terms = '' (string|array) - The terms to exclude, as a comma seperated string or an array of integers.

• $taxonomy = 'category' (string) - Only required if $in_same_cat = true.

So to get your links working as you desire you should do this -

<?php $excluded_terms = '4835'; ?>
<div class="next_prev_cont">
    <div class="left">
        <?php previous_post_link('%link', '<i>Previous post</i><br />%title', false, $excluded_terms); ?> 
    </div>
    <div class="right">
        <?php next_post_link('%link', '<i>Next post</i><br />%title', false, $excluded_terms); ?> 
    </div>
    <div class="clear"></div>

I recommend you take a few moment to read the related function referneces for these two functions -

• next_post_link() - http://codex.wordpress.org/Function_Reference/next_post_link
• previous_post_link() - http://codex.wordpress.org/Function_Reference/previous_post_link