Admin Control Panel Statistics

[Radon3k]

In the Admin Control Panel you have the ability to display statistics such as PHP and MySQL information as well as other information. I'm to add some PHP and MySQL information onto a non-vBulletin page. How was this information retrieved and how would I go about adding it to a non-vBulletin page? Please note I'm not looking to use vBulletin's code (as in I'm not trying to display vBulletin related information on a non-vBulletin page, I want non-vBulletin information). I hope this makes sense. Thanks!