I plan to make 3 database,userid,photoid and commentid
userid can build non-limited photoid ,visitors can comment on each photoid.Userid can login to delete commentid of each photoid.
The question is need I to have userid field in comment.cfg to allow userid del/modify each commentid own by that userid?
userid,...(for user.db)
userid,photoid,...(for photo.db)
userid,photoid,commentid,...(for comment.db)

and in comment.cfg ,I set the $auth_user_field = 0; is it correct?
$auth_user_field = 0;

Regards,
Act.
I am new to cgi, Thank you for your help.