Using ajax to call php and return multiple variables?

Question

I am trying to use javascript to call a php script which then will return multiple variables back to my javascript so I can manipulate them.

This is my JS.

Answer 1

convert json to object

jQuery.ajax({
    type: "GET",
    url: 'test.php',
    dataType: "json",
    success: function(response) {
       item=JSON.parse(response);
        console.log(item);
        alert(item.num1);
    }
});