programming language originally designed for producing dynamic web pages.[1] PHP is used mainly in server-side scripting, but can be used from a command line interface or in standalone graphical applications. Textual User Interfaces can also be created using ncurses. PHP is a recursive initialism for PHP: Hypertext Preprocessor.
The main implementation is produced by The PHP Group and released under the PHP License. This implementation serves to define a de facto standard for PHP, as there is no formal specification.
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML. PHP generally runs on a web server, taking PHP code as its input and creating Web pages as output. However, it can also be used for command-line scripting and client-side GUI applications. PHP can be deployed on most web servers and on almost every operating system and platform free of charge. The PHP Group also provides the complete source code for users to build, customize and extend for their own use.
PHP primarily acts as a filter. The PHP program takes input from a file or stream containing text and special PHP instructions and outputs another stream of data for display.
What is PHP exactly when it comes to web design and why is it important?
PHP is a programing language kind of like Java of C, but it (unlike Java and C) is able to be read by the browser itself without any outside attachments. This makes it more useful for building things of web pages that you need to load fast or when Java is not available. It also makes web pages smaller and makes them take up less bandwidth because you have to transfer less data then with a Java app.
Reply:Take a look at the wiki, it really explains it better then anyone.
http://en.wikipedia.org/wiki/PHP
php is not important as such, but in order to create a successfull website, you need to take advance of a program language to create that extra something.
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