Run PHP scripts from Unity

Hi. I am trying to follow this tutorial:

My problem is I do not know where and how to host PHP scripts. I have tried using Mediafire, but it seems that the result downloaded by HSController is the text from display.php itself instead of the information from the MySql database I am using! I am not good with networking. Can someone help out?

Contact MediaFire and ask them to enable PHP script execution on your site. Your problem has nothing whatsoever to do with Unity.