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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
                                   Open a web browser.      1      bar: http://localhost/hello.php            2













                 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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