My aim is to access from a client, with some parameters, which would update server database and send other values from the server database.

Client -> send few values I am using a form to fetch it.

When submit is triggered i need to pop up a new form which will update all the values in a server row. and send the relevant values to the client and update the server.

I know its too crude and confusing, in case you have a better idea implementation please let me know. I need to use APIs to send inputs and fetch outputs thats another headache which I will address later.

Crudely I can rephrase my problem.

Input comes in few of the coloumns of a databse, it should update all the columns and send appropriate results to the client.  

Please help me out on this because this tool is a new experience to me and I have minimal to no experience in .net and php

Thank Ypu