PHP is an open source server-side scripting language that is designed for web programming and is widely used to create server applications and dynamic web content. The author of the language is the Canadian of Danish origin Rasmus Lerdorf. PHP is a recursive acronym from PHP: Hypertext Preprocessor (with the meaning given by its creators at the very beginning of Personal Home Page).
PHP is a scripting language with syntax based on C and Perl. It is mainly used in Web-environment for realization of a wide range of services.
PHP is distributed under an open source license (PHP License), which is essentially a BSD license and which allows free distribution of the program code of the language interpreter, as well as the creation of derivative interpreters under other licenses, provided that these interpreters may not include PHP in its name. The fact that PHP is freely distributed makes it a good choice for building a Web server based entirely on free products – GNU / Linux, Apache, MySQL / PostgreSQL and others.
The language itself is portable to many computing architectures and operating systems such as GNU / Linux, UNIX, Mac OS X, Windows.
License: PHP License.