$.ajax({
            // the URL for the request
            url: "findPatient.php",
            // the data to send (will be converted to a query string)
            data: {pnhsno: $('#search').val()},
            // whether this is a POST or GET request
            type: "GET",
            // the type of data we expect back
            dataType : "json",
            // code to run if the request succeeds;
            // the response is passed to the function
            success: function( json ) {

                $('#ex1').val(json[0].firstname);
            }


            });


    });