Can I write PHP codes in html file in tizen studio?

or Can I use Node.js in js file in tizen studio?

or any other ways to connect DB server in tizen web app?

I have cloud Linux Ubuntu. And I am making DB server for communicate between webapp and DB server.

How can web app send datas to DB server?

I want to make server and web app for data communication by using server side language and Linux server’s IP address.

What is the usable server side languages in tizen studio web app?

The web app be able to send datas to DB server and select(lookup) attributes from DB server.

Is there any usable source code in tizen web app?