Passing Javascript Variable to PHP using Ajax

Question

I\'m working on an existing script at the moment which uses Ajax, something I\'ve never worked with before. I have a variable set in my javascript file which gets its value

Answer 1

Or you can do this:

data: "userID=" + onlyID + "&credoff=" + credoff

don't forget the ampersand! &

Answer 2

...
data: {
    userId: onlyID,
    credoff: credoff
},
...