Title: memcache not being recognised
Last modified: August 21, 2016

---

# memcache not being recognised

 *  [stephenc](https://wordpress.org/support/users/stephenc/)
 * (@stephenc)
 * [12 years ago](https://wordpress.org/support/topic/memcache-not-being-recognised/)
 * I have installed memcache according to [this tutorial](https://rtcamp.com/tutorials/php/memcache/).
   It is running and I can see it using phpmemcacheadmin. However, W3TC is not seeing
   it. The only option I can use for Object and Database caches is Disk.
 * My compatibility test config is below:
 *     ```
       Plugin Version: 0.9.4
       PHP Version: 5.5.9-1ubuntu4;
       Web Server: Apache
       FTP functions: Installed (required for Self-hosted (FTP) CDN support)
       Multibyte String support: Installed (required for Rackspace Cloud Files support)
       cURL extension: Installed (required for Amazon S3, Amazon CloudFront, Rackspace CloudFiles support)
       zlib extension: Installed (required for compression support)
       Opcode cache: Not installed
       Memcache extension: Not installed
       HTML Tidy extension: Not installed (required for HTML Tidy minifier suppport)
       Mime type detection: Installed (Fileinfo) (required for CDN support)
       Hash function: Installed (hash) (required for NetDNA / MaxCDN CDN purge support)
       Safe mode: Off
       Open basedir: Off
       zlib output compression: Off
       set_time_limit: Available
       mod_deflate: Installed (required for disk enhanced Page Cache and Browser Cache)
       mod_env: Installed (required for disk enhanced Page Cache and Browser Cache)
       mod_expires: Not installed (required for disk enhanced Page Cache and Browser Cache)
       mod_headers: Not installed (required for disk enhanced Page Cache and Browser Cache)
       mod_mime: Installed (required for disk enhanced Page Cache and Browser Cache)
       mod_rewrite: Installed (required for disk enhanced Page Cache and Browser Cache)
       mod_setenvif: Installed (required for disk enhanced Page Cache and Browser Cache)
       Additional Server Modules
   
       New Relic
       PHP version: Not supported: 5.5.9-1ubuntu4. Supported versions are 5.2.x, 5.3.x, 5.4.x.
       Operating System: Supported
       Web Server: Supported
       WordPress Resources
   
       /var/www/.htaccess: OK
       /var/www/wp-content: OK
       /var/www/wp-content/uploads/2014/05: OK
       Fancy permalinks: /%postname%/
       WP_CACHE define: Defined (true)
       URL rewrite: Enabled
       Network mode: No
       ```
   
 * [https://wordpress.org/plugins/w3-total-cache/](https://wordpress.org/plugins/w3-total-cache/)

The topic ‘memcache not being recognised’ 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)
 * [Support Threads](https://wordpress.org/support/plugin/w3-total-cache/)
 * [Active Topics](https://wordpress.org/support/plugin/w3-total-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/w3-total-cache/unresolved/)
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## Tags

 * [memcache](https://wordpress.org/support/topic-tag/memcache/)
 * [php5](https://wordpress.org/support/topic-tag/php5/)
 * [W3TC](https://wordpress.org/support/topic-tag/w3tc/)

 * 0 replies
 * 1 participant
 * Last reply from: [stephenc](https://wordpress.org/support/users/stephenc/)
 * Last activity: [12 years ago](https://wordpress.org/support/topic/memcache-not-being-recognised/)
 * Status: not resolved