Webserver On Stick (WOS)

WOS Portable: "WOS stands for the three letter abbreviation Webserver On Stick and makes it possible, to run a webserver based on Apache, MySQL and PHP from an USB Stick or any other writable media (harddrive, flash cards etc.) without installation under Windows (98 to Vista). There are three different versions of WOS:"

This is a great way to showcase a PHP website when you have no control over the location. Simply place the website on a USB drive, carry to the location, showcase your work and accept pat on the back.

Link:
http://www.chsoftware.net/en/useware/wos/wos.htm