PHP is a server-side scripting language that is installed on a web server to help one develop dynamic web sites and web pages. PHP stands for PHP Hypertext Preprocessor. Yes the first P in PHP stands for PHP, making this a recursive acronym and an infinite loop. The naming is cool if you are a dork or computer nerd like myself.

Anway, PHP helps you to develop dynamic or changing websites. It is a free and open-source technology that comes installed standard on most if not all linux and unix-based web servers. An equivalent scripting language / server-side technology to PHP on Linux web server would be ASP on a Windows web server.

PHP = PHP: Hypertext Preprocessor