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PHP was introduced with a small open source project. Rasmus Lerdorf unleashed the first version of PHP way back in 1994. PHP is a powerful language and the interpreter included in a web server are module executed as a separate, CGI binary, is able to access files, execute commands and open between connection on the server

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. It is a recursive acronym for “Hypertext Preprocessor” which is a widely used open source generates purpose scripting language. We especially suited for the web-development and can be embedded into HTML.

What distinguishes PHP from something like C and java script is that the code is executed on the server, generating HTML which is then sent to the client. The client would receive the results of running that script, but would not know that the underlying code was.

PHP is mainly focused on server side scripting, you can do anything any other CGI program can do, such as collect form date, generate dynamic page content or send receiver cookies.

There are 3 main areas where PHP scripts are used :-

SERVER-SIDE SCRIPTING: - This is the most traditional and target field from PHP. It only needs PHP passes, a web server and a web browser.

COMMAND LINE SCRIPTING: - It is used to make a PHP script to run it without any server or browser. You only need the PHP passes to use it this way. This type is ideal for script regularly executed using cross (UNIX or Linux) or task scheduler (on Windows).

WRITING DESKTOP APPLICATION: - PHP is probably not the very best language to create a desktop application with a GUI, but if anyone knows PHP very well and would like to use same advanced PHP features than can use PHP-GTK to write such programs.

Why PHP?

  1. PHP runs on different platforms (Windows, Linux, Unix etc.)
  2. PHP is compatible with almost all servers used today (Apache, IIS etc.)
  3. PHP is FREE to download from the official PHP resource:
  4. PHP is easy to learn and runs efficiently on the server side

Where to Start?
To get access to a web server with PHP support, you can:

  1. Install Apache (or IIS) on your own server, install PHP, and MySQL
  2. Or find a web hosting plan with PHP and MySQL support