Vladimir Kolesnikov

Hi James,

The plugin only lists the available methods.

If you, say, want APC, you will need to install APC, same for other extensions.

The three engines that you see are always available because they use plain PHP and don’t need any extensions.

Hi Paul,

Just give it a try 🙂 It is really difficult to suggest anything without knowing internals of the site.

Best regards,
Vladimir

Hi Danilo,

I asked WP Support to rename the plugin in the repo but until then it has to be renamed manually.

Of course I can modify all the paths in the code but this will break a lot of (unofficial) installations of the plugin.

Reagrding cached queries: basically the plugin can cache everything (not only query results) but for this to work the other plugins should use WP Cache API (http://codex.wordpress.org/Class_Reference/WP_Object_Cache).

In brief,

$result = wp_cache_get($key, $group);
if (false === $result) {
    // Do the heavy stuff: query DB etc
    // ...

    // Save the result to the cache
    wp_cache_set($key, $result, $group, $ttl);
}

$key is the ID of the data in the cache, $group is cache group (plugin name is a good idea to be used as a group name), $ttl is the time to keep the data in the cache.

WordPress itself uses the Cache API that’s why you usually see performance improvements even if no other plugins use the API.

Hello,

EM Object Cache supports eAccelerator and Memcache (there are two PHP extensions: memcache and memcached — both are supported) but Wincache is not supported.

I am working on adding Mongo backend and possibly Phalcon.

Hello,

The plugin is meant to be called em_object_cache, not em-object-cache.

Please rename the directory for now – I have asked WP stuf to rename the plugin in the repo.