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#PHP








        Today, we use various websites which accept data like name, address, etc. from us and return the result
        accordingly. Do you know how these websites accepts data and return the result dynamically? This is
        possible due to the use of scripting languages. There are various scripting languages like JavaScript,
        Active Server Pages(JSP), ASP.NET, and PHP. Let us learn about PHP in detail.

             PHP


        PHP  (Hypertext  Preprocessor) is a server side  scripting  language.  It  is  very popular  and  powerful
        language to develop dynamic web pages. It is freely available to use. It is embedded in HTML pages.
        The programs written in PHP are interpreted by a web server. So, we need to install a webserver before
        executing a PHP program.

        Installing a Web Server

        A web server is a program that executes a script and show the output in a web browser. There are
        various web servers which allow to interpret the PHP programs and execute them. Some of the web
        servers are as Apache HTTP Server, WampServer, NGINX, etc. You can install any of the web servers to
        execute a PHP script.

        XAMPP is one of the most commonly used application packages that is a combination of a web server
        and required libraries to run a PHP script. It is a cross-platform environment where you can execute
        your PHP scripts. You can download XAMPP application from the following link:

        https://www.apachefriends.org/download.html

        After installing XAMPP, start the the Apache HTTP Server. Now you can execute your PHP scripts.

             CREATING AND RUNNING A PHP SCRIPT


        Before writing the first PHP script, you need to know how to add a PHP script into an HTML document.
        A PHP script is added to an HTML document with the help of PHP start tag <?php and end tag ?>. The
        syntax is as follows:


        <?php
        //PHP code

        ?>
         After adding the PHP script, save the file with .php extension.





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