Title: object cache implementation does not support flushing in-memory runtime cache
Last modified: January 13, 2023

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# object cache implementation does not support flushing in-memory runtime cache

 *  Resolved [giggles420](https://wordpress.org/support/users/gigglesslut420/)
 * (@gigglesslut420)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/object-cache-implementation-does-not-support-flushing-in-memory-runtime-cache/)
 * Since 2.2.9, I get this notice in log once per minute:
   “PHP Notice: Function 
   wp_cache_flush_runtime was called incorrectly. Your object cache implementation
   does not support flushing the in-memory runtime cache. Please see Debugging in
   WordPress for more information. (This message was added in version 6.1.0.) in/
   public_html/wp-includes/functions.php on line 5835”PHP 8.0, current WP, current
   W3 Total CacheRelated: [https://github.com/W3EDGE/w3-total-cache/issues/584](https://github.com/W3EDGE/w3-total-cache/issues/584)

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [3 years, 4 months ago](https://wordpress.org/support/topic/object-cache-implementation-does-not-support-flushing-in-memory-runtime-cache/#post-16371189)
 * Hello [@gigglesslut420](https://wordpress.org/support/users/gigglesslut420/)
 * Thank you for reaching out. As you can see this notification was added to WP 
   6.1.0>
   As you have already shared, we have a GitHub issue opened for this and
   we are working on a solution that will be added in future releases.Please make
   sure to track the progress of the issue on the GH repository.
 * Thanks!

Viewing 1 replies (of 1 total)

The topic ‘object cache implementation does not support flushing in-memory runtime
cache’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/object-cache-implementation-does-not-support-flushing-in-memory-runtime-cache/#post-16371189)
 * Status: resolved