what is php?

Answer 1

PHP (PHP: Hypertext Preprocessor) is a reflective programming language originally designed for producing dynamic Web pages. PHP is used mainly in server-side application software, but can be used from a command line interface or in standalone graphical applications.

More at:
http://en.wikipedia.org/wiki/Php

Answer 2

They call it Hypertext preprocessor. Simply put, it is a scripting language that runs on the server to produce the html pages you see on the browser. The html pages when produced the data you see could be retreived from a data source like database or file system.

Answer 3

The simple answer.. Php is a scripting language used in developing web systems. Its is server side scripting, which means that your code(embedded in the html) will reside on the server,...

This is the actual code used to run your web driven system. The part you cannot see..

Answer 4

PHP (PHP: Hypertext Preprocessor) is a reflective programming language originally designed for producing dynamic Web pages. PHP is used mainly in server-side application software, but can be used from a command line interface or in standalone graphical applications.

PHP competes with Visual Basic and C++ as the third most popular programming language behind Java and C, based on world wide availability of practitioners, courses and vendors.[1] Available under the PHP License, PHP is an open source language and is considered to be free software by the Free Software Foundation.

Usage
PHP generally runs on a web server, taking PHP code as its input and creating Web pages as output, but command-line scripting and client-side GUI applications are part of the three primary uses of PHP as well.

Server-side scripting
Originally designed to create dynamic web pages, server-side scripting is the principal focus for PHP. While running the PHP parser with a web server and web browser, the PHP model can be compared to other server-side scripting languages such as Microsoft's ASP.NET system, Adobe ColdFusion, Sun Microsystems' JavaServer Pages, Zope, mod_perl and the Ruby on Rails framework, as they all provide dynamic content to the client from a web server. To more directly compete with the "framework" approach taken by these systems, Zend is working on the Zend Framework - an emerging (as of June 2006) set of PHP building blocks and best practices; other PHP frameworks along the same lines include CakePHP and Symfony.

The LAMP architecture has become popular in the Web industry as a way of deploying inexpensive, reliable, scalable, secure web applications. PHP is commonly used as the P in this bundle alongside Linux, Apache and MySQL. PHP can be used with a large number of relational database management systems, runs on all of the most popular web servers and is available for many different operating systems. This flexibility means that PHP has a wide installation base across the Internet; over 18 million Internet domains are currently hosted on servers with PHP installed.[6]

Examples of popular server-side PHP applications include phpBB, PHP-Nuke, Joomla, Wordpress and MediaWiki.

Command-line scripting
PHP also provides a command line interface SAPI for developing shell and desktop applications, log parsing, or other system administration tasks. It is increasingly used on the command line for tasks which have traditionally been the domain of Perl, awk, or shell scripting.

Client-side GUI applications
PHP provides bindings to GUI libraries such as GTK+ and text mode libraries like ncurses in order to facilitate development of a broader range of cross-platform GUI applications.

Syntax
PHP primarily acts as a filter which takes a file containing text and special PHP instructions and converts it to another form for display.

You could get more information from the link below...

Answer 5

HYpertext Preprocessor

Answer 6

A programming language used on websites mostly databases

Answer 7

ur question is not clear