Title: PHP 8 Warning: Undefined array key
Last modified: January 23, 2023

---

# PHP 8 Warning: Undefined array key

 *  Resolved [Yannick Zipf](https://wordpress.org/support/users/yannickzipf/)
 * (@yannickzipf)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/php-8-warning-undefined-array-key/)
 * Hello Folks,
 * currently I can see a PHP Warning in my Logfiles:
 * PHP Warning: Undefined array key “href” in /[…]/wp-content/plugins/boxzilla/src/
   default-filters.php on line 27
 * I guess the only way to avoid this, is to check with isset() if the array key
   exists.
 * I’m running WordPress 6.1.1 with BoxZilla 3.2.25 on PHP 8.0.27.
 * Thank you for looking into this!

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Lap](https://wordpress.org/support/users/lapzor/)
 * (@lapzor)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/php-8-warning-undefined-array-key/#post-16403537)
 * Thanks for letting us know.
   I’ve created an issue report here:[https://github.com/ibericode/boxzilla-wp/issues/171](https://github.com/ibericode/boxzilla-wp/issues/171)

Viewing 1 replies (of 1 total)

The topic ‘PHP 8 Warning: Undefined array key’ is closed to new replies.

 * ![](https://ps.w.org/boxzilla/assets/icon-256x256.png?rev=1414640)
 * [Boxzilla - WordPress Popup Builder](https://wordpress.org/plugins/boxzilla/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/boxzilla/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/boxzilla/)
 * [Active Topics](https://wordpress.org/support/plugin/boxzilla/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/boxzilla/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/boxzilla/reviews/)

 * 1 reply
 * 4 participants
 * Last reply from: [Lap](https://wordpress.org/support/users/lapzor/)
 * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/php-8-warning-undefined-array-key/#post-16403537)
 * Status: resolved