Store arbitrary data in the cache

set($id, $data, $tags = NULL, $lifetime = NULL)

• [string] $id The ID of the cached data. Must be unique.
• [mixed] $data If $data is not a string it will be serialized for storage.
• [mixed] $tagsdefaults to none, an array should be supplied. This is useful when grouping caches together.
• [mixed] $lifetime specific lifetime can be set. If none given the default lifetime from the configuration file will be used.

• [array] The cached data.

This is one example

$this->cache->set('existentialists', $data, $tags);

Here's another example

$data = array('Jean Paul Sartre', 'Albert Camus', 'Simone de Beauvoir');
$tags = array('existentialism', 'philosophy', 'french');
 
$this->cache->set('existentialists', $data, $tags);