How To Setup A Web Server On Your Raspberry Pi by Matt via raspberrypi-spy.com.uk:
This page aims to summarise the steps required to install a webserver with PHP support onto your Raspberry Pi. This will allow the Pi to server HTML and PHP pages to users on the same network. This is a useful mechanism to view images and/or data on the Pi from another device, whether that is a PC, laptop, tablet or mobile phone.
Check out the step-by-step tutorial here!