Title: PHP message: PHP Warning, PHP Deprecated
Last modified: July 7, 2025

---

# PHP message: PHP Warning, PHP Deprecated

 *  Resolved [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * (@garrigan)
 * [10 months, 4 weeks ago](https://wordpress.org/support/topic/php-message-php-warning-php-deprecated/)
 * PHP message: PHP Warning: Undefined variable $output in /XXXXXXXXXXXXX/wp-content/
   plugins/website-llms-txt/includes/class-llms-generator.php on line 428;
 * PHP message: PHP Deprecated: mb_convert_encoding(): Passing null to parameter#
   1 ($string) of type array|string is deprecated in /XXXXXXXXXXXXX/wp-content/plugins/
   website-llms-txt/includes/class-llms-generator.php on line 428;
 * PHP message: PHP Warning: Undefined variable $output in /XXXXXXXXXXXXX/wp-content/
   plugins/website-llms-txt/includes/class-llms-generator.php on line 428;
 * PHP message: PHP Deprecated: mb_convert_encoding(): Passing null to parameter#
   1 ($string) of type array|string is deprecated in /XXXXXXXXXXXXX/wp-content/plugins/
   website-llms-txt/includes/class-llms-generator.php on line 428

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

 *  Plugin Author [Pavlo Samsonov](https://wordpress.org/support/users/samsonovteamwork/)
 * (@samsonovteamwork)
 * [10 months, 3 weeks ago](https://wordpress.org/support/topic/php-message-php-warning-php-deprecated/#post-18545510)
 * Hi [@garrigan](https://wordpress.org/support/users/garrigan/)
 * Thanks again for the detailed explanation and for reporting this!
 * We’ve just released version **7.1.4** of the plugin, which includes updates that
   should resolve the PHP warnings and deprecation notices you’ve encountered:
 * ✅ Fix for Undefined variable $output at line 428.
 * ✅ Fix for mb_convert_encoding() receiving null — now properly handles empty 
   values.
 * ✅ General improvements for PHP 8+ compatibility.
 * Please update to **7.1.4**, clear any caches, and test again. If you still notice
   any issues after updating, feel free to share details and we’ll investigate further.
 * Thank you for helping improve the plugin!
 * Best regards,
 * **LLMs Plugin Support Team**
 *  Thread Starter [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * (@garrigan)
 * [10 months, 3 weeks ago](https://wordpress.org/support/topic/php-message-php-warning-php-deprecated/#post-18546293)
 * You are welcome and thank you for the update.

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

The topic ‘PHP message: PHP Warning, PHP Deprecated’ is closed to new replies.

 * ![](https://ps.w.org/website-llms-txt/assets/icon-256x256.png?rev=3322182)
 * [Website LLMs.txt](https://wordpress.org/plugins/website-llms-txt/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/website-llms-txt/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/website-llms-txt/)
 * [Active Topics](https://wordpress.org/support/plugin/website-llms-txt/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/website-llms-txt/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/website-llms-txt/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [Jim Garrigan](https://wordpress.org/support/users/garrigan/)
 * Last activity: [10 months, 3 weeks ago](https://wordpress.org/support/topic/php-message-php-warning-php-deprecated/#post-18546293)
 * Status: resolved