Here the example:

OK i have a User sign up for something he has to enter 3 values (fname, lname, email).
-then the server records the values to a database, (ID will be generated automatic)
-the server sends also an email as confirmation which includes the following URL:

www.domain.com/delete.asp?id=0001?fname=anton?lname=yours

but now the URL should look like this:

www.domain.com/delete.asp?id=5d45?fname=09df4?lname=433d5

so for the values it should generate crypted number or combination of number and letters
i know how to add the values and send the email

but i dont know how the crypt them and to add the ID in the email url

please help me
thx for all help

best regards
ToXiT