Title: debug error on line 233
Last modified: February 7, 2018

---

# debug error on line 233

 *  [Stephen S](https://wordpress.org/support/users/ssuess/)
 * (@ssuess)
 * [8 years, 4 months ago](https://wordpress.org/support/topic/debug-error-on-line-233/)
 * You have a line that causes a debug error (undefined index: cb) on line 233 whenever
   I edit an individual category:
 * `$new_columns['cb'] = $columns['cb'];`
 * I am not sure why you are setting this since you unset it 2 lines later:
 *     ```
       function z_taxonomy_columns( $columns ) {
           $new_columns = array();
           $new_columns['cb'] = $columns['cb'];
           $new_columns['thumb'] = __('Image', 'categories-images');
   
           unset( $columns['cb'] );
   
           return array_merge( $new_columns, $columns );
       }
       ```
   
 * Other things that may be useful to know: This is a custom taxonomy
 * Thanks

The topic ‘debug error on line 233’ is closed to new replies.

 * ![](https://ps.w.org/categories-images/assets/icon-128x128.png?rev=2256871)
 * [Categories Images](https://wordpress.org/plugins/categories-images/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/categories-images/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/categories-images/)
 * [Active Topics](https://wordpress.org/support/plugin/categories-images/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/categories-images/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/categories-images/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [Stephen S](https://wordpress.org/support/users/ssuess/)
 * Last activity: [8 years, 4 months ago](https://wordpress.org/support/topic/debug-error-on-line-233/)
 * Status: not resolved