PHP, or PHP: Hypertext Preprocessor, is a widely used, general-purpose scripting language that was originally designed for web development, to produce dynamic web pages. It can be embedded into HTML and generally runs on a web server, which needs to be configured to process PHP code and create web page content from it. It can be deployed on most web servers and on almost every operating system and platform free of charge.PHP is installed on over 20 million websites and 1 million web servers PHP was originally created by Rasmus Lerdorf in 1995 and has been in continuous development ever since. The main implementation of PHP is now produced by The PHP Group and serves as the de facto standard for PHP as there is no formal specification. PHP is free software released under the PHP License, which is incompatible with the GNU General Public License (GPL) because of restrictions on the use of the term PHP.
MySQL is a relational database management system (RDBMS) that has more than 11 million installations. MySQL is named after Monty Widenius’s daughter My (a not uncommon finnish name). The program runs as a server providing multi-user access to a number of databases. MySQL is officially pronounced (My S-Q-L), but often pronounced (My SeQueL). The project has made its source code available under the terms of the GNU General Public License, as well as under a variety of proprietary agreements. MySQL is owned and sponsored by a single for-profit firm, the Swedish company MySQL AB, now a subsidiary of Sun Microsystems. As of 2009[update] Oracle Corporation began the process of acquiring Sun Microsystems. MySQL is often used in free software projects that require a full-featured database management system, such as WordPress, phpBB and other software built on the LAMP software stack. It is also used in many high-profile, large-scale World Wide Web products including Wikipedia, Google and Facebook.