Thread:Project:Support desk/Daily Random Tag Extension/reply (3)

The  just puts a max time for something to be cached, if parser caching is not enabled or something else on the page is killing the cache, it won't affect anything. In some set-ups the html version of the wiki page is saved for (up to) a couple weeks before being re-generated. The  thing is just making a unique name for the item you're storing. It doesn't matter what it actually is, its just convention to use your extension name so it doesn't interfere with other extensions.