How to build Key Checking Online function and open Pro features ?

[hoangdiemtinh]

I am new to PB.
My primary language is not US/UK. I am using Google Translate.

I want to ask those who have built it successfully.
I have to manually create an xml and jSON file and upload it to the host; then read the key/user data in there, and start checking which key is Pro, which key is free; Or how should I do it?

I already have a Host, running WordPress. Is it possible to add users and keys to the WordPress database?

Someone give me a specific example. Thanks for the help.

[Fred]

You should try to post a small code showing where you stand for, you can't ask other to write code for you from scratch (you can ask ChatGPT for that).

[Caronte3D]

You can add (and check) users and keys to the WP database, but you need a php script on the server side.
The rest can be done with simple HttpRequests.