Php
PHP is a general-purpose server-side scripting language originally designed for web development to
produce dynamic web pages. For this purpose, PHP code is embedded into the HTML source document and
interpreted by a web server with a PHP processor module, which generates the web page document.
It also has evolved to include a command-line interface capability and can be used in standalone
graphical applications.[2] PHP can be deployed on most web servers and as a standalone interpreter,
on almost every operating system and platform free of charge.[3] There is also commercial software
such as RadPHP, a rapid application development framework for the PHP language. A competitor to
Microsoft's Active Server Pages (ASP) server-side script engine[4] and similar languages, PHP is
installed on more than 20 million websites and 1 million web servers.[5] PHP was originally created
by Rasmus Lerdorf in 1995. 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.[6] PHP is free software released
under the PHP License which is incompatible with the GNU General Public License (GPL) due to
restrictions on the usage of the term PHP