Title: Fatal error undefined function
Last modified: August 31, 2016

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# Fatal error undefined function

 *  [pwizard](https://wordpress.org/support/users/pwizard/)
 * (@pwizard)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-undefined-function-6/)
 * I want to move YARRP below comments, so I set YARRP not to show and then added
 * <?php related_posts(); ?>
 * in single.php
 * PHP Fatal error: Call to undefined function related_posts() in /my-theme-path/
   single.php on line 133
 * Am I missing something?
 * Thanks
 * [https://wordpress.org/plugins/yet-another-related-posts-plugin/](https://wordpress.org/plugins/yet-another-related-posts-plugin/)

Viewing 1 replies (of 1 total)

 *  [Richard B](https://wordpress.org/support/users/richard-b/)
 * (@richard-b)
 * [9 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-undefined-function-6/#post-8603570)
 * Getting the same issue here too

Viewing 1 replies (of 1 total)

The topic ‘Fatal error undefined function’ is closed to new replies.

 * ![](https://ps.w.org/yet-another-related-posts-plugin/assets/icon-256x256.png?
   rev=2549977)
 * [YARPP - Yet Another Related Posts Plugin](https://wordpress.org/plugins/yet-another-related-posts-plugin/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/yet-another-related-posts-plugin/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/)
 * [Active Topics](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/yet-another-related-posts-plugin/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Richard B](https://wordpress.org/support/users/richard-b/)
 * Last activity: [9 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-undefined-function-6/#post-8603570)
 * Status: not resolved