Title: PHP 8 Issue – Undefined Array Key
Last modified: December 22, 2022

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# PHP 8 Issue – Undefined Array Key

 *  [nathaningram](https://wordpress.org/support/users/nathaningram/)
 * (@nathaningram)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/php-8-issue-undefined-array-key/)
 * This error appears in logs after updating to PHP 8.
 *     ```wp-block-code
       PHP Warning: Undefined array key "filterenable" in /XXXXXXXX/wp-content/plugins/one-click-order-reorder/includes/class-basket-order.php on line 1318
       ```
   

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [Kees Lamper](https://wordpress.org/support/users/keeslamper/)
 * (@keeslamper)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/php-8-issue-undefined-array-key/#post-16322777)
 * I am also having problems with php 8
 *  [patrik179](https://wordpress.org/support/users/patrik179/)
 * (@patrik179)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/php-8-issue-undefined-array-key/#post-16384341)
 * Hello, we also have the same problem. Does anyone know a solution for this problem?
 * **Warning**: Undefined array key “filterenable”
 * **wp-content/plugins/one-click-order-reorder/includes/class-basket-order.php**
   on line **1318**
 *  [Kees Lamper](https://wordpress.org/support/users/keeslamper/)
 * (@keeslamper)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/php-8-issue-undefined-array-key/#post-16403973)
 * Any news about this problem?

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘PHP 8 Issue – Undefined Array Key’ is closed to new replies.

 * ![](https://ps.w.org/one-click-order-reorder/assets/icon-256x256.png?rev=2760366)
 * [One Click Order Re-Order](https://wordpress.org/plugins/one-click-order-reorder/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/one-click-order-reorder/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/one-click-order-reorder/)
 * [Active Topics](https://wordpress.org/support/plugin/one-click-order-reorder/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/one-click-order-reorder/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/one-click-order-reorder/reviews/)

 * 3 replies
 * 3 participants
 * Last reply from: [Kees Lamper](https://wordpress.org/support/users/keeslamper/)
 * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/php-8-issue-undefined-array-key/#post-16403973)
 * Status: not resolved