Topic on Manual talk:Sites table

Hi,

I'd like to know what I have to enter into the site_data field. Currently my table looks like this:

a:1:{s:5:"paths";a:2:{s:9:"file_path";s:5:"/w/$1";s:9:"page_path";s:8:"/wiki/$1";}}

Is there some documentation out there on how to populate the site_data field?

Thanks and cheers,

P.S.: Looks like the number after "s:" seems to be the amount of characters followed, for example "file_path" has 9 characters.