Peter-

So I have need to add custom namespaces to my project. I find tons of pages that tell me to modify wgExtraNamespages in LocalSettings.php, however this variable is not given an example config in my file and I have no idea what the proper format is supposed to be for this.

Can anyone tell me, or give me a link as to how I should format this pref?

Check includes/DefaultSettings.php , it contains lots of config settings that are not commonly changed and therefore not in LocalSettings.php, including this one (this is not a really good way to deal with the problem, some people are working on web-based configuration which can then have different layers of complexity).

Regards,

Erik