I think I'll just use arrays, one for the caller, and one globally that has the default values. Fortunately that function isn't called in that many places.

Making and then really using the CMS helped me with knowing what I would want in my next CMS, and just keeping the whole in mind from the start would probably make it a lot better by itself. My thinking is that the longer I put that off, the more languages improved and the more I hopefully learned in the meantime ^^