Memcached Redux

Description

Changes the famous Memcached WP Object Cache backend to actually use the Memcached class (not the Memcache class). Implements wp_cache_get_multi() and wp_cache_set_multi()

wp_cache_get_multi( array(
    array( 'key', 'group' ),
    array( 'key', '' ),
    array( 'key', 'group' ),
    'key'
) );

wp_cache_set_multi( array(
    array( 'key', 'data', 'group' ),
    array( 'key', 'data' )
) );

Blog Post: http://scotty-t.com/2012/06/05/memcached-redux/

Installation

  1. Install memcached on at least one server. Note the connection info. The default is 127.0.0.1:11211.

  2. Install the PECL memcached extension

  3. Copy object-cache.php to wp-content

Reviews

June 19, 2020
Well, the plugin does its Job (cloud/centos7/apache/php/fpm/7.3 + memcached) fine. However, my site is quite komplex (multilingual, bbpress, aso..). Yesterday I had to make some changes (new pages) and the menu-system completely fell apart. It was not possible to add menu items, the connect between language-versions fell appart - horrible. Issue was finally solved by renaming the object_cache.php in wp_contend. So: The performance is really fine, but admin have to know what they are doing and disable plugin when changing (at least) menues.
February 20, 2019
Using the object cache plugin on my VPS from Upcloud managed with Serverpilot. Result? Everything feels much faster Using now php7.2 and can't wait that the memchached extension becomes available for php7.3
January 10, 2018
Works with PHP7 amd Amazon Elasticache memcached. [link removed] Thank you for making this available.
September 3, 2016
Memcached PHP extension and memcached servers are widely supported by many hosts these days (2016). So, this plugin just works with most hosts. Now, I can't see any site without using this plugin for WP Object Cache!
Read all 9 reviews

Contributors & Developers

“Memcached Redux” is open source software. The following people have contributed to this plugin.

Contributors

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Interested in development?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.

Changelog

0.1.7

  • Improved escaping in debug output ported from Memcached plugin (props @batmoo).
  • Fixed PHP notice when no Memcached server:port manually specified.

0.1.6

  • Corrected documentation
  • Corrected stats collection (props @johnbillion)

0.1.5

  • Added support for PHP 7+ by changing to __construct and pre-initializing stats

0.1.3

  • Added support for WP_CACHE_KEY_SALT allowing multiple sites to use the same Memcached server.

0.1.2

  • Allows graceful fallback to database object cache in WordPress 3.7+ for users without PECL Memcached available.
  • Fixes warning due to replace() call, as it does not take a compression argument in Memcached.

0.1.1

  • Fixes a problem with the get_option() function and the return value of wp_cache_get() on Linux

0.1

  • Initial release