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Writing First PHP Script

            The echo statement is used in a PHP script to display the output on the web page. It can be used with
            or without parenthesis. Let us write a PHP script to display Hello World! message. Perform the following
            steps to create the script:

            Step 1: Open Notepad and type the following code:
            <HTML>

            <HEAD> <TITLE> First PHP Script </TITLE> </HEAD>
            <BODY>

            <?php
            echo "Hello World!";
            ?>

            </BODY>
            </HTML>
            Step 2: Save the file with the Hello.php name under the C:\xampp\htdocs folder.

            Running a Script

            Perform the following steps to run a script:


                                                              Type the following URL in the Address
                                                       1                                                  2
                              Open a web browser.             bar: http://localhost/hello.php












            The echo statement will display Hello World! on the web page. Note that every PHP statement should be
            terminated with a semicolon. Ensure that the Apache HTTP Server should be running before executing
            the script.


                 PHP KEYWORDS


            PHP provides a set of keywords that are reserved words. They cannot be used as variable names, class
            names or method names. Some of the keywords are as follows:

                    and                   as                 break                case                 catch
                    class               const              continue              default                do

                    echo                 else                elseif              endfor             endforeach
                    endif             endswitch            endwhile              extends               final

                   finally                for               foreach             function              global




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