MyBB Community Forums

Where are the registration query which has all the MySQL query code syntax and all? Plus, where can I add custom MySQL syntax in the registration code?

I am not sure whether I understand you correctly. But registration is handled in member.php with action = register (preparation of the form) and action = do_register (after the form has been submitted).
But the SQL actions take place in other parts, like in inc/datahandlers/user.php.

Displaying the forms and stuff: member.php Lines 686-1292 (register): https://github.com/mybb/mybb/blob/featur...r.php#L686

Handling checking and validation, then insertion into DB (do_register): Lines 88-671: https://github.com/mybb/mybb/blob/featur...er.php#L88

https://github.com/mybb/mybb/blob/featur...s/user.php is where the UserDataHandler comes from. It's what will *actually* insert the user. A UserDataHandler is created in member.php near Line 88 (linked above).

Thanks you Josh H. for this precision. I have looked it, but, where is the QUERY (INSERT INTO...) ? I search this.

Thanks!