Title: Undefined array key “dud_instance_name”
Last modified: June 3, 2024

---

# Undefined array key “dud_instance_name”

 *  [Aharon](https://wordpress.org/support/users/spaceling/)
 * (@spaceling)
 * [2 years ago](https://wordpress.org/support/topic/undefined-array-key-dud_instance_name/)
 * Hi and thank you for your helpful plugin!
 * I’ve been testing PHP 8 on my site and seeing just how many plugins are complaining.
   Most of the PHP Warnings are of the type “undefined array key” and Dynamic User
   Directory is reporting one of these with gusto. The full warning is as follows
 * `PHP Warning: Undefined array key "dud_instance_name" in /home/[....]/wp-content/
   plugins/dynamic-user-directory/includes/core.php on line 1919`

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Ed Ammendola](https://wordpress.org/support/users/eammendolaha/)
 * (@eammendolaha)
 * [1 year, 11 months ago](https://wordpress.org/support/topic/undefined-array-key-dud_instance_name/#post-17842104)
 * I saw the same error for Dynamic User Directory. I had to revert back to 7.4 
   on WAMP in order to resolve.
 *  [SomniumLucidus](https://wordpress.org/support/users/somniumlucidus/)
 * (@somniumlucidus)
 * [1 year, 10 months ago](https://wordpress.org/support/topic/undefined-array-key-dud_instance_name/#post-17927631)
 * Same problem here, since I updated to WP version 6.6.1. PHP 8 was already installed
   and the plugin was running flawlessly.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Undefined array key “dud_instance_name”’ is closed to new replies.

 * ![](https://ps.w.org/dynamic-user-directory/assets/icon-256x256.jpg?rev=1449434)
 * [Dynamic User Directory](https://wordpress.org/plugins/dynamic-user-directory/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/dynamic-user-directory/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/dynamic-user-directory/)
 * [Active Topics](https://wordpress.org/support/plugin/dynamic-user-directory/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/dynamic-user-directory/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/dynamic-user-directory/reviews/)

## Tags

 * [php 8](https://wordpress.org/support/topic-tag/php-8/)

 * 2 replies
 * 3 participants
 * Last reply from: [SomniumLucidus](https://wordpress.org/support/users/somniumlucidus/)
 * Last activity: [1 year, 10 months ago](https://wordpress.org/support/topic/undefined-array-key-dud_instance_name/#post-17927631)
 * Status: not resolved