Basic ajax question

Basic ajax question

Hello, what is the easiest way to get 4 variables from a php file back to the original page?

$j.ajax({
               type: "POST",
               url: "edit/remote.php,
               success: function(response){   
                  
               }
         });   


I need response to let me get 3 variables that I can echo in remote.php

The variables are single words...

Is the easiest way like datatype: text, html, or xml.

I'm lost.

Thanks