php in my site

How do I put php code into my website? I figured that to do custom html, you had to use phpMyAdmin, but i cant figure out how to put php into the content boxes using phpMyAdmin.

Please Help! 

Comment for more information you may need.

Don't know where you're wanting to put the php code or what exactly you want you're trying to do, but if you want to add a php page block, then you'll need deano's tools.