/* Create the file, hello.php, in your htdocs or public_html directory,
 * or somewhere in the system.
 *
 * If Apache is running on your local computer and you saved the file in htdocs,
 * open a web browser and go to http://localhost/hello.php
 *
 * If you want to run it in the command line mode:
 *   php hello.php
 */

echo 'Hello, world!';