$section string Name of a section or directory of the cache, null to delete everything
What is section? i don't see about this in other part of cache document. and How to set cache with directory? because when i use set cache with / in identifier it throw error!
Correct. You can use a cache key like "module.function.keyname", and with delete_all("module"), you delete every cache item that starts with "module.".
It's easiest to understand if you use the file driver, where that key translates to the ./module/function/keyname.cache file. The delete_all('module') will delete the ./module folder, and everything in it.
Donate
