Title: PHP8 Warnings
Last modified: February 20, 2023

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# PHP8 Warnings

 *  Resolved [mattinventive](https://wordpress.org/support/users/mattinventive/)
 * (@mattinventive)
 * [3 years, 3 months ago](https://wordpress.org/support/topic/php8-warnings/)
 * Hello,
 * I’ve been upgrading my site to PHP8 from 7.4. Prior to upgrading I’ve had no 
   errors for your plugin but upon upgrading I’m getting the following error:
 * `usort(): Returning bool from comparison function is deprecated, return an integer
   less than, equal to, or greater than zero`
 * In
 * `wp-content/plugins/envira-gallery-lite/includes/global/rest.php:437`
 * Here’s my environment details:
 * **Hosting: **Pantheon 
   **PHP: **8.0

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

 *  [Joshua Fredrickson](https://wordpress.org/support/users/joshf/)
 * (@joshf)
 * [3 years, 3 months ago](https://wordpress.org/support/topic/php8-warnings/#post-16506228)
 * I’m seeing this as well. It occurs when editing any post in the block editor.
 * Changelog suggests PHP8 notices were fixed back in 1.8.4.0, but I guess they 
   missed one.
 *  [bmilligan15](https://wordpress.org/support/users/bmilligan15/)
 * (@bmilligan15)
 * [3 years, 2 months ago](https://wordpress.org/support/topic/php8-warnings/#post-16514215)
 * Hi [@mattinventive](https://wordpress.org/support/users/mattinventive/) and [@joshf](https://wordpress.org/support/users/joshf/)!
 * I apologize for any trouble. I’ve been able to replicate this error locally, 
   and have opened a ticket for our team to investigate. The moment I have an update
   to share on this, I’ll be sure to let you both know.
 * Thank you!

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

The topic ‘PHP8 Warnings’ is closed to new replies.

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## Tags

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

 * 2 replies
 * 3 participants
 * Last reply from: [bmilligan15](https://wordpress.org/support/users/bmilligan15/)
 * Last activity: [3 years, 2 months ago](https://wordpress.org/support/topic/php8-warnings/#post-16514215)
 * Status: resolved