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Hi,
​
I have a PHP custom code which returns a value (S/N). His name is 'doks' and code is something like this:

...
return DoksUserHelper::downloadDocument($this->data('codice_fiscale', ''));

The code above works and returns 'N'. After that, I have a switcher which uses value return by PHP code to display a message or another one.
I don't understand which data provider use inside my switcher, I tried {data:doks}, {var:doks} and {var:doks.returned} but it seems data switcher doesn't do anything.
Debugger says:

Array
(
    [chronoform] => reset-password
    [event] => submit
    [codice_fiscale] => gfdgfdgfd
    [secicon2] => 5abdfd98861ec
    [button3] => 
    [Itemid] => 128
    [option] => com_chronoforms6
    [view] => form
)

Array
(
    [check_secicon15] => Array
        (
            [_success] => The security image verification was successfull.
            [var] => 1
        )

    [doks] => Array
        (
            [returned] => N
            [var] => N
        )

)

Thanks in adavance