Database table permissions

[Anon]

Hi! I am very new at creating php pages that require database
permissions and restrictions, (am I using the right terms?....)
anyway, I need to create some php pages that will recognise a
user (once they have logged into the network) and grant write
permissions to specific tables in the database. If the user is not
recognised, then a page will come up saying so. (NT4) Anyone
have any idea how I can do this?

[toma42]

Create database accounts for users and use another database account to validate users. Once you have a valid db username and password, use those to connect to the database.

Make sure NOT to use persistent connections for these db connections (except for the validation connection) because you'll run out of connections or have a lot you don't need.