Title: Undefined index: classes-defined
Last modified: August 31, 2016

---

# Undefined index: classes-defined

 *  Resolved [rezon8dev](https://wordpress.org/support/users/rezon8dev/)
 * (@rezon8dev)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/undefined-index-classes-defined/)
 * I’m wondering if you see this on your environment. I’m running this on WPEngine
   hhvm servers. This is what I’m seeing in the error logs:
 * PHP Notice: Undefined index: classes-defined in /nas/content/MY/SITE/wp-content/
   plugins/widget-css-classes/includes/widget-css-classes.class.php on line 105,
   referer: a url on the front end of my site…
 * Any chance you can address it?
 * [https://wordpress.org/plugins/widget-css-classes/](https://wordpress.org/plugins/widget-css-classes/)

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

 *  Plugin Contributor [Cindy Kendrick](https://wordpress.org/support/users/elusivelight/)
 * (@elusivelight)
 * [9 years, 11 months ago](https://wordpress.org/support/topic/undefined-index-classes-defined/#post-7370293)
 * Thanks for the info on the notice. I don’t have time right now to do a fix and
   update, but I’ve added it to my list.
 *  Plugin Author [Jory Hogeveen](https://wordpress.org/support/users/keraweb/)
 * (@keraweb)
 * [9 years, 10 months ago](https://wordpress.org/support/topic/undefined-index-classes-defined/#post-7370570)
 * Hi rezon8dev,
 * I haven’t seen this notice on any of my test installations but I can see how 
   this could happen.
 * [@cindy](https://wordpress.org/support/users/cindy/),
    To prevent this notice
   and some other topics of the support forum I’ve created a pull request. [https://github.com/cleverness/widget-css-classes/pull/10](https://github.com/cleverness/widget-css-classes/pull/10)

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

The topic ‘Undefined index: classes-defined’ is closed to new replies.

 * ![](https://ps.w.org/widget-css-classes/assets/icon-256x256.jpg?rev=1130657)
 * [Widget CSS Classes](https://wordpress.org/plugins/widget-css-classes/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/widget-css-classes/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/widget-css-classes/)
 * [Active Topics](https://wordpress.org/support/plugin/widget-css-classes/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/widget-css-classes/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/widget-css-classes/reviews/)

 * 2 replies
 * 3 participants
 * Last reply from: [Jory Hogeveen](https://wordpress.org/support/users/keraweb/)
 * Last activity: [9 years, 10 months ago](https://wordpress.org/support/topic/undefined-index-classes-defined/#post-7370570)
 * Status: resolved