# Method Cache.Storage.Base()->aget()

Method aget

  ``void` aget(`string` `key`, `function`(`string`, `int(0..0)`|`Cache.Data`, `mixed` ... :`void`) `callback`, `mixed` ... `extra_callback_args`)`

Description

  Fetch some data from the cache asynchronously.

  `callback()` will get as first argument `key`, and as second argument `0` (cache miss) or an Cache.Data object, plus any additional argument that the user may have supplied.