PHP (Php:hypertext Preprocessor) is a scripting language that executes on a computer, with the main purpose of handling dynamic Web pages, including command line interface, or creating graphical user interface (GUI) programs.
PHP was first invented by Rasmus Loedorf in 1995, and now the PHP standard is maintained by the PHP group and the open source community. PHP uses PHP license as the license agreement, but because this protocol restricts the use of PHP names, it is incompatible with the Open Source License Agreement GPL.
The scope of application of PHP is quite extensive, especially in the development of web-based programs. In general, PHP is mostly executed on the Web server, by executing PHP code to generate user-browsed web pages. PHP can be executed on most servers and operating systems, and PHP is completely free to use. Based on April 2007 statistics, PHP has been installed on more than 20 million websites and 1 million servers
PHP originally referred to as Personal Home page, is Rasmus Loedorf in order to maintain personal web pages, and in C language developed some CGI tool set, to replace the original use of Perl program. Initially these tools were used to display Rasmus Loedorf's CV, as well as statistics on web traffic [. He integrates these programs with some form-translation, called Php/fi. Php/fi can be connected to the database, resulting in a simple Dynamic Web-page program. [6] Rasmus Loedorf released Php/fi publicly on June 8, 1995, hoping to speed up the development and search for errors through the community. The released version is named PHP 2 and already has some of today's PHP styles, such as Perl-like variable naming, form processing, and the ability to embed in HTML. Programming syntax is similar to Perl, with more restrictions, but simpler and more resilient.