How to write custom config data to cache?

Question

The scenario is like this. I want to programmatically change config data and write those values to cache. I know changing config data through programmatically is possible and how to do. But how can I write those changed config values to cache?

Any suggestions will be appreciated.

Thanks in advance.

Answer 1

If you have the cache for config enabled those values will be automatically cached.
Just make sure you clear the config cache after you modify your values:

Mage::app()->getCacheInstance()->cleanType('config');