I launched a browser in Ubuntu and entered the following IP "127.0.0.1" to obtain ‘evidence’ of Apache and PHP at work.
 
In case you can’t read the print, it says
"Apache/2.0.55 (Ubuntu) PHP/5.1.2 Server at 127.0.0.1 Port 80"
 
However, my personal geek did not know how to prove that MySQL is running so hopefully someone can answer that question.