php adjacent record insert to another table

hi,
i am a newbie in php and building a db for my executives' work performance. the db has 2 tables.

point table defines work like pub, edn and point. there are many editions under one single publication and total of 4 publication.
eg pub is A, edn is CE and point is 2
and pub is T, edn is CE, point is 2.5
these values are inserted into the database considering the merit of each work.


an executive feeds in the values of pub, edition and i want a php to secure the assigned point according to the work to his name.

thanks in advance.