php: PHP(Hypertext Preprocessor)

PHP stands for PHP: Hypertext Preprocessor programing language. PHP is a server-side scripting language, like ASP and PHP scripts are executed on the server.PHP supports many databases like MySQL, Informix, Oracle, Sybase, Solid, PostgreSQL, Generic ODBC, etc.PHP is an open source software and free to download and use.
PHP files can contain text, HTML tags and scripts .PHP files are returned to the browser as plain HTML . PHP files have a file extension of ".php", ".php3", or ".phtml" .PHP runs on different platforms (Windows, Linux, Unix, etc.).PHP is compatible with almost all servers used today (Apache, IIS, etc.).PHP combined with MySQL are cross-platform (you can develop in Windows and serve on a Unix platform)
PHP is a general-purpose scripting language that was 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. As a general-purpose programming language, PHP code is processed by an interpreter application in command-line mode performing desired operating system operations and producing program output on its standard output channel. It may also function as a graphical application. PHP is available as a processor for most modern web servers and as a standalone interpreter on most operating systems and computing platforms.
PHP was originally created by Rasmus Lerdorf in 1995and 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.

PHP is a powerful tool for making dynamic and interactive Web pages.PHP is the widely-used, free, and efficient alternative to competitors such as Microsoft's ASP.php use in more language like a html ,xml ,xhtml ,javascripts,Ajax and database in mysql.