How to make a database in an iframe application?

Question

PHP

how to add information about the user to the database after loading the application, and then update 1 parameter using js, is it real?

Answer 1

it is necessary to form ifreme taking into account the user and all parameters. you can't pass anything from outside to ifame

Answer 2

There is an option to transfer data from the site to the iframe. It's called postmessage. Here is a link to the documentation https://developer.mozilla.org/en-US/docs/Web/API/W...
After you get the necessary information in the iframe, you can manipulate it as you want through js.
Communication is two-way, you can both send and receive data both inside and outside the frame