Codeigniter-dd-cache is a project mainly written in PHP, it's free.
Partial caching with memcached or APC for CodeIgniter
CodeIgniter-DD-Cache is a partial caching library for CodeIgniter. It allows you to write and get chunks of data to and from a connected memcache or APC instance.
This work is based entirely on a combination of Phil Sturgeon's CodeIgniter-Cache (http://github.com/philsturgeon/codeigniter-cache), and Elliot Haughin's CodeIgniter-multicache (http://www.haughin.com/code/multicache/)
// Uncached model call
$this->blog_m->getPosts($category_id, 'live');
// cached model call
$this->cache->model('blog_m', 'getPosts', array($category_id, 'live'), 120); // keep for 2 minutes
$this->cache->library('some_library', 'calculate_something', array($foo, $bar, $bla)); // keep for default time (0 = unlimited)
$this->cache->write($data, 'cached-name');
$data = $this->cache->get('cached-name');
$this->cache->delete('cached-name');Make sure you have memcached or APC set up for PHP, and set your config appropriately.
CodeIgniter, APC or memcached
If you'd like to request changes, report bug fixes, or contact the developer of this library, email [email protected]