Title: PHP warning
Last modified: January 17, 2024

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# PHP warning

 *  Resolved [VerySimpleSites](https://wordpress.org/support/users/verysimplesites/)
 * (@verysimplesites)
 * [2 years, 4 months ago](https://wordpress.org/support/topic/php-warning-470/)
 * I’m getting a php warning as follows:
   Undefined variable $res in /home/lalecheorg/
   public_html/wp-content/plugins/litespeed-cache/src/object-cache.cls.php on line
   480What could be causing this? Is it anything to worry about? All plugins etc
   up to date.

The topic ‘PHP warning’ is closed to new replies.

 * ![](https://ps.w.org/litespeed-cache/assets/icon-256x256.png?rev=2554181)
 * [LiteSpeed Cache](https://wordpress.org/plugins/litespeed-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/litespeed-cache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/litespeed-cache/)
 * [Active Topics](https://wordpress.org/support/plugin/litespeed-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/litespeed-cache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/litespeed-cache/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [VerySimpleSites](https://wordpress.org/support/users/verysimplesites/)
 * Last activity: [2 years, 4 months ago](https://wordpress.org/support/topic/php-warning-470/)
 * Status: resolved