Cannot redeclare wp_cache_add while using wp-cli

Resolved Vineet Talwar
(@vineettalwar)

6 years, 11 months ago

Following is the error message,
PHP Fatal error: Cannot redeclare wp_cache_add() (previously declared in /htdocs/wp-content/object-cache.php:92) in /htdocs/wp-includes/cache.php on line 31

While running, any wp cli command throws aforementioned error message.
– WordPress: 5.1 multisite installation
– /wp-content/object-cache.php is present and
running updated code from from /wp-content/plugins/w3-total-cache/wp-content/object-cache.php

— issue started, after I have upgraded to WordPress 5.1 to my installations.
— Now no wp-cli command is working.

Viewing 6 replies - 1 through 6 (of 6 total)

Thread Starter Vineet Talwar
(@vineettalwar)

6 years, 11 months ago

Also, deactivation and reactivation of plugin, haven’t worked for me, as it worked for this ticket.
https://wordpress.org/support/topic/w3tc-wp-cli-problem/

Benjamin Danon
(@bndn)

6 years, 11 months ago

I have the same problem here. Upgrade to WP 5.1, WP-CLI, nothing happens after deactivating/activating W3TC.

Benjamin Danon
(@bndn)

6 years, 11 months ago

I tried to dig into this bug. It is related with this changes commited one year ago in WP trunk that just land in WP 5.1 and more precisely with the usage of the static variable named $first_init. The object cache is disabled (ObjectCache_WpObjectCache_Regular.php, line 792) because cli mode is detected, but now the wp_using_ext_object_cache() is not checked anymore on line 566, then cache.php is loaded.
I’m not able to say if there is an error with loading cache in WP trunk or if W3TC should disable the object cache in an other way.

copytrans
(@copytrans)

6 years, 11 months ago

Exact same problem here.

Plugin Contributor Marko Vasiljevic
(@vmarko)

6 years, 11 months ago

Hello,

Please check the following topic as the solution is provided there => https://wordpress.org/support/topic/cannot-redeclare-wp_cache_xxx/#post-11277041

Thread Starter Vineet Talwar
(@vineettalwar)

6 years, 11 months ago

Thank you for the solution.
The issue is fixed as of now with mentioned solution.
Will Look forward for next update.

Viewing 6 replies - 1 through 6 (of 6 total)

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