i have been using intel XDK to create mobile applications recently. For this certain application, the user will register an account (username, password, confirm password) and then use their registration details to log into the application. i have decided to use mySQL to create a database to connect it to the application although i have no idea where to start. Can anyone advise me on this? Thank-you.
You need to connect your html codes to a PHP script in a server by AJAX. You may use JSON to transfer data from PHP in server side to JS in the client side.
This seems to be a useful guide: http://qnimate.com/create-a-intel-xdk-app-with-php-and-mysql-backend/
There might be other nice guides. I googled "connect xdk to mysql", maybe this helps you.