How to make a dialog box/page with fields to insert/update data in php?
Can't find a suitable article how to implement a page or window for changing data in the database and add new records in PHP.
The main problem in data exchange between pages. If possible, throw the link to the article on this issue.
Did not understand into the account of the exchange of data between pages. If we are talking only about PHP, then you organicity method POST or GET.