how to pass non form field values from one website to another for verification fields

[vinod kadam]

I have make php mysql login system all system is worked well.But our client require the login from his system to another website. So that website admin give us secure url that verify the username and distributor code value but i faced the problem is that i cant send distributor code thats why the our visitor not get login to another website.How to retrive distributor code from the mysql database and send with login page to another website.

[dgreenhouse]

What do you mean by this: "i cant send distributor code?"

Are you saying you can't or you don't know how to call upon a external service during the login process?