Questions of manipulate table father and san in the same PHP

["Claudio Miguel Muller" <claudiomiguelmuller@xxxxxxxxxxx>]

Hello my friends,
i am Cláudio from Brazil.

Sorry, i dont speak english very well...

I am starting in PHP/mySQL.

I have a question, 
what the technical that i need to in the same page PHP

edit the father table, example 'invoice', 
and below items about produtcs... insert,delete,update the items

and the end of page,
have SAVE, 
save table invoice, save table invoice_items ...

Thanks.
Cláudio.