text: For other uses, see PHP (disambiguation).\n  PHP\n \nMaintainer: The PHP Group \nLatest release: 5.1.4 / May 4, 2006\n4.4.2 / January 13, 2006 \nOS: Cross-platform \nUse: Scripting language \nLicence: PHP License 3.01 \nWebsite: www.php.net \nPHP is a scripted programming language that can be used to create websites. Short for "PHP: Hypertext Preprocessor" (the initials actually come from the earliest version of the program, which was called "Personal Home Page" but in their current form, constitute a recursive acronym), it is an open-source, reflective programming language used mainly for developing server-side applications and dynamic web content, and more recently, a broader range of software applications. For example, MediaWiki, the software behind Wikipedia, is written in PHP.\n\nPHP allows interaction with a large number of relational database management systems, such as MySQL, Oracle, IBM DB2, Microsoft SQL Server, PostgreSQL, Firebird and SQLite. PHP runs on most major operating systems, including Unix, Linux, Netware, Windows, and Mac OS X, and can interact with many major web servers.\n\nPHP provides a command line interface (CLI), as well as GUI libraries such as the Gimp Tool Kit (GTK+) and text mode libraries like Ncurses and Newt.\n\nPHP is the result of the efforts of many contributors. It is licensed under the PHP License, a BSD-style license. Since version 4, it has been powered by the Zend engine.\n\nPHP was originally designed as a small set of Perl scripts, followed by a rewritten set of CGI binaries written in C by the Danish-Canadian programmer Rasmus Lerdorf in 1994 to display his résumé and to collect certain data, such as how much traffic his page was receiving. "Personal Home Page Tools" was publicly released on 8 June 1995 after Lerdorf combined it with his own Form Interpreter to create PHP/FI.\n\nZeev Suraski and Andi Gutmans, two Israeli developers of the Technion - Israel Institute of Technology, rewrote the parser in 1997 and formed the base of PHP 3, changing the language's name to the recursive acronym "PHP: Hypertext Preprocessor". The development team officially released PHP/FI 2 in November 1997 after months of beta testing. Public testing of PHP 3 began immediately and the official launch came in June 1998. Suraski and Gutmans then started a new rewrite of PHP's core, producing the Zend engine in 1999 (a page at www.zend.com states that PHP 3 was powered by Zend Engine 0.5). They also founded Zend Technologies in Ramat Gan, Israel which has since overseen the PHP advances.\n\nIn May 2000, PHP 4, powered by the Zend Engine 1.0, was released.\n\nOn July 13, 2004, PHP 5 was released, powered by Zend Engine II. PHP 5 includes new features such as PHP Data Objects (PDO) and more performance enhancements taking advantage of the new engine.