"One key driver of free and open source software is the LAMP
paradigm--cleverly named after the systems it embraces--Linux,
Apache, MySQL and PHP. This powerful combination delivers high
powered data-enabled web and intranet sites with a minimum of fuss.
Here's how to get started with PHP.
"PHP is a web scripting language (akin to Microsoft's Active
Server Pages or Adobe's ColdFusion.) Originally, it began as a
humble collection of Perl scripts designed to ease the creation of
popular web addons like guest books and message boards, PHP meaning
simply 'Personal Home Page...'"