[PHP] how to find the system tmp folder

How does one find the system temp folder? from php? in a platform independant way

RE: [PHP] help with nl2br

You might check out http://photomatt.net/scripts/autop "Call this function on the text you want to convert. Think of this code like nl2br on steroids. This is basically a cross-platform set of regular expressions that takes text formatted only by newlines and transforms it into text properly marke