Previous and Next Post in Same Taxonomy

Allows you to get the previous and next post link for posts in the same taxonomy. Simulates the patch to Trac ticket #17807.

Author:Bill Erickson (profile at
WordPress version required:3.2
WordPress version tested:3.2.1
Plugin version:1.0
Added to WordPress repository:09-08-2011
Last updated:09-08-2011
Warning! This plugin has not been updated in over 2 years. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.
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If you use next_post_link('%link', '%title', true) or previous_post_link('%link', '%title', true) to get the adjacent post for a custom post type which has a taxonomy assigned to it, it doesn't work as intended.

Those functions are all hardcoded to look to the taxonomy 'category'. This patch let's you change that if you'd like.

If you have a custom post type 'product' with a taxonomy 'color' and want the prev/next post links on the single product page to go to similarly colored ones, use this:

be_previous_post_link('%link', '%title', true, '', 'color'); be_next_post_link('%link', '%title', true, '', 'color');

Please post any issues you find on the Trac ticket so the core patch can be updated:

Functions available:

  • be_previous_post_link()
  • be_next_post_link()
  • be_adjacent_post_link()
  • be_get_previous_post()
  • be_get_next_post()
  • be_get_adjacent_post()
  • be_get_adjacent_post_rel_link()
  • be_adjacent_posts_rel_link()
  • be_next_post_rel_link()
  • be_prev_post_rel_link()
  • be_get_boundary_post()
  • be_get_boundary_post_rel_link()
  • be_start_post_rel_link()

Please see the source of the plugin for documentation. They should work just like the original functions, except they now accept an additional parameter, $taxonomy, that's set to 'category' by default.