I\'ve looped over the Request.ServerVariables collection in ASP.NET, but it\'s not as comprehensive as phpinfo().
How can I print all that
Have a look at glimpse.
glimpse: A client side Glimpse to your server
What Firebug is for the client, Glimpse does for the server... in other words, a client side Glimpse into whats going on in your server.
Here's the request tab as shown in the browser.
(source: getglimpse.com)
There are other tabs with information, and it's possible to write plugins.