Title: PHP 8.4 issue
Last modified: August 13, 2026

---

# PHP 8.4 issue

 *  [7thcircle](https://wordpress.org/support/users/7thcircle/)
 * (@7thcircle)
 * [2 days, 7 hours ago](https://wordpress.org/support/topic/php-8-4-issue-3/)
 * TEC\Common\StellarWP\Uplink\API\Client::validate_license(): Implicitly marking
   parameter $key as nullable is deprecated, the explicit nullable type must be 
   used instead
   wp-content/plugins/event-tickets/common/vendor/vendor-prefixed/stellarwp/
   uplink/src/Uplink/API/Client.php:197
 * TEC\Common\StellarWP\Uplink\Resources\Resource::__construct(): Implicitly marking
   parameter $license_class as nullable is deprecated, the explicit nullable type
   must be used instead
   wp-content/plugins/event-tickets/common/vendor/vendor-prefixed/
   stellarwp/uplink/src/Uplink/Resources/Resource.php:158
 * TEC\Common\StellarWP\Uplink\Resources\Resource::register(): Implicitly marking
   parameter $license_class as nullable is deprecated, the explicit nullable type
   must be used instead
   wp-content/plugins/event-tickets/common/vendor/vendor-prefixed/
   stellarwp/uplink/src/Uplink/Resources/Resource.php:481
 * TEC\Common\StellarWP\Uplink\Resources\Resource::register_resource(): Implicitly
   marking parameter $license_class as nullable is deprecated, the explicit nullable
   type must be used instead
   wp-content/plugins/event-tickets/common/vendor/vendor-
   prefixed/stellarwp/uplink/src/Uplink/Resources/Resource.php:501
 * TEC\Common\StellarWP\Uplink\Resources\Plugin::register(): Implicitly marking 
   parameter $license_class as nullable is deprecated, the explicit nullable type
   must be used instead
   wp-content/plugins/event-tickets/common/vendor/vendor-prefixed/
   stellarwp/uplink/src/Uplink/Resources/Plugin.php:172

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

 *  Plugin Support [Darian](https://wordpress.org/support/users/d0153/)
 * (@d0153)
 * [2 days, 4 hours ago](https://wordpress.org/support/topic/php-8-4-issue-3/#post-18992054)
 * Hi [@7thcircle](https://wordpress.org/support/users/7thcircle/)
 * Thanks for reaching out and for providing more details about the issue you’re
   experiencing.
 * After reviewing the behavior, I can confirm that this appears to be a valid issue.
   I’ve created an internal bug ticket for our team to investigate further, and 
   I’ve added your case to it so you’ll be notified when a fix becomes available.
 * As a temporary workaround, you can add the following to your `wp-config.php` 
   file:
 *     ```wp-block-code
       define( 'WP_DEBUG', false );
       ```
   
 * Please note that this disables WordPress debugging, so you may want to re-enable
   it when debugging is needed.
 * Rest assured, we’ll update this thread once the issue has been resolved. Thank
   you for your patience while our team works on this.
 * —-
   Internal Bug Ticket Reference: **SMTNC-2001**
 *  Thread Starter [7thcircle](https://wordpress.org/support/users/7thcircle/)
 * (@7thcircle)
 * [2 days, 4 hours ago](https://wordpress.org/support/topic/php-8-4-issue-3/#post-18992070)
 * I am aware that I can disable debugging. While it is off in production, on my
   dev site where I am testing to see if your plugin is finally updated I have it
   on so I can determine if I can update to newer versions of PHP.
 *  Plugin Support [Darian](https://wordpress.org/support/users/d0153/)
 * (@d0153)
 * [1 day, 14 hours ago](https://wordpress.org/support/topic/php-8-4-issue-3/#post-18992836)
 * Thanks for the clarification, [@7thcircle](https://wordpress.org/support/users/7thcircle/).
   That makes perfect sense, especially since you’re using the dev site to test 
   PHP compatibility. Keeping debugging enabled there is definitely helpful for 
   identifying any compatibility issues.
 * Please feel free to reach out if you encounter anything else during your testing.

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

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 * 3 replies
 * 2 participants
 * Last reply from: [Darian](https://wordpress.org/support/users/d0153/)
 * Last activity: [1 day, 14 hours ago](https://wordpress.org/support/topic/php-8-4-issue-3/#post-18992836)
 * Status: not resolved