Title: opcode not selectable
Last modified: March 23, 2022

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# opcode not selectable

 *  Resolved [technichdml](https://wordpress.org/support/users/technichdml/)
 * (@technichdml)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/opcode-not-selectable/)
 * Hi,
 * i cant make use of opcode somehow as caching storage:
 * in general settings => opcode cache is available and selected:
    [https://snipboard.io/Igim9x.jpg](https://snipboard.io/Igim9x.jpg)
 * opcode ins installed and active
    See: [https://snipboard.io/G1w6PL.jpg](https://snipboard.io/G1w6PL.jpg)
   and: [https://snipboard.io/zRYLXk.jpg](https://snipboard.io/zRYLXk.jpg)
 * But i cant select it in any setting to use this cache:
    See just one example:
   [https://snipboard.io/WYEv2z.jpg](https://snipboard.io/WYEv2z.jpg)
 * Can you please assist?
 * Thank you!

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

 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/opcode-not-selectable/#post-15488668)
 * Hello [@technichdml](https://wordpress.org/support/users/technichdml/)
 * Thank you for reaching out and I am happy to assist you with this.
    As you can
   see in the screenshot the Opcode Cache Opcode: Zend Opcache is selected. This
   is read-only which means that the installed module is enabled and available. 
   As for the other modules, you need to install Alternative PHP Cache (APC / APCu)
   as Zend Opcache is not a caching module for Page Caching, DB Caching, Object 
   Caching etc. Again, You need to install the [Alternative PHP Cache (APC / APCu)](https://github.com/W3EDGE/w3-total-cache/wiki/FAQ:-Installation:-PHP-Modules#install-alternative-php-cache-apc-module)
   PHP module to be able to use it.
 * Thanks!
 *  Thread Starter [technichdml](https://wordpress.org/support/users/technichdml/)
 * (@technichdml)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/opcode-not-selectable/#post-15489059)
 * Hi, okay i got it so basically opcode is only for basic php file caching.
 * Thank you. Can be closed

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

The topic ‘opcode not selectable’ is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
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 * 2 replies
 * 2 participants
 * Last reply from: [technichdml](https://wordpress.org/support/users/technichdml/)
 * Last activity: [4 years, 2 months ago](https://wordpress.org/support/topic/opcode-not-selectable/#post-15489059)
 * Status: resolved