in need of serious help, in more ways then php but we'll start there tonight.

I’ve created a site where I have visitors create profiles and then log in with user name and password, pretty simple. But I’d like them to be able to update and delete those same profiles.

I have it designed where there is a link to "modify” the info submitted. Something like Edit that’s all fine and well but how do I handle that info on the other side.. I’d like to pass the variable by username or id.


My db looks like this
Id
Username
Password
Address1
Address2
City
State
Zip
Etc.