Q: How to install PHP for Apache HTTP Server?

1. Read General Notes
2. Read How to add extra repositories?
3. Read How to install Apache HTTP Server for HTTP (Web) Server service?

4. sudo apt-get install php4
   sudo /etc/init.d/apache2 restart
   sudo gedit /var/www/testphp.php

5. Insert the following line into the new file

   <?php phpinfo(); ?>

6. Save the edited file (sample)
7. https://localhost/testphp.php