Title: Conflict on object-cache.php
Last modified: December 20, 2022

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# Conflict on object-cache.php

 *  Resolved [cybeardjm](https://wordpress.org/support/users/didierjm/)
 * (@didierjm)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/)
 * Hi, just updated to the latest version of Performance Lab by the [WordPress Performance Team](https://make.wordpress.org/performance/)
   and it installs an object-cache.php in wp-content with a different signature 
   than yours, ofc creating a conflict.
 * Options are: to remove the file or disable object caching.
 * Sincerely
   DJM

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/#post-16306694)
 * Hello [@didierjm](https://wordpress.org/support/users/didierjm/)
 * Thank you for reaching out.
 * I’ve tested this and indeed the mentioned plugin does add the object-cache.php
   to the wp-content folder. Unfortunately, the only solution for this is to remove
   the file added by Performance Lab, as W3 Total Cache needs this or Object Caching
   if enabled of course.
 * Just to confirm, this was added in the latest release?
 * Thanks!
 *  Thread Starter [cybeardjm](https://wordpress.org/support/users/didierjm/)
 * (@didierjm)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/#post-16306858)
 * Thx Marko, absolutely, with the latest release of Performance Lab last night.
 * On their side, they’re denying… See thread [here](https://wordpress.org/support/topic/conflict-on-object-cache-php-2/#post-16306142).
   Might be you should confirm your tests.
 * I tried many things, and finally had to rename their file.
 * Sincerely
 * DJM
 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/#post-16307422)
 * Hello [@didierjm](https://wordpress.org/support/users/didierjm/)
 * Thank you for your feedback. It appears that they did not test this with the 
   Object Cache enabled. It’s correct that W3TC has the file in the plugin folder:/
   wp-content/plugins/w3-total-cache/wp-content/object-cache.php
 * This file is there so it can be added to /wp-content/ once the OC is enabled 
   in the W3 Total Cache settings.
 * As per their suggestion, you can remove their drop-in file and add the following
   constant in wp-config.php which will prevent this plugin from placing this file
 * `define( 'PERFLAB_DISABLE_OBJECT_CACHE_DROPIN', true );`
 * I hope this helps!
 *  Thread Starter [cybeardjm](https://wordpress.org/support/users/didierjm/)
 * (@didierjm)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/#post-16307447)
 * Thx [@vmarko](https://wordpress.org/support/users/vmarko/) – yes, they told me
   I could “disable” and so on…
 * But, in my view, this is bad testing on their side. I know there’s a lot of plugins,
   contexts and so on… making testing complex… But at least do tests with the “biggests”
   ones and don’t dismiss what people say by default…
 * DJM
 *  Thread Starter [cybeardjm](https://wordpress.org/support/users/didierjm/)
 * (@didierjm)
 * [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/#post-16307535)
 * FYI issue logged on [Github](https://github.com/WordPress/performance/issues/612).
 * DJM

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘Conflict on object-cache.php’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
 * [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/w3-total-cache/#faq)
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 * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
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 * 5 replies
 * 2 participants
 * Last reply from: [cybeardjm](https://wordpress.org/support/users/didierjm/)
 * Last activity: [3 years, 5 months ago](https://wordpress.org/support/topic/conflict-on-object-cache-php/#post-16307535)
 * Status: resolved