Set form values using PHP

In prior versions of CF, I would use PHP code like below in a Custom Code action to set values when a form was opened:
​

<?php
$today = date("Y-m-d h:i:s");
$form->data['pr_datestamp'] = $today;
$thisdate = date("m/d/Y");
$form->data['pr_date'] = $thisdate;
$form->data['pr_ip'] = $_SERVER['REMOTE_ADDR'];
?>

Using CFv6, I am completely confused how to do something similar. I have the documentation, but I am ashamed to admit that I cannot figure out how to do what I want.
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Can anyone point me to something that could explain this to me?
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Rick

Hi Rick,
​
The code you need for CFv6 has changed - you can see examples at the foot of Page 34 of the manual.
​
Bob

Bob,
​
I did look at that page. I am just really not sure how to use it. It's embarrassing, but true.
​
Rick

Hi Rick,
​
I think you need something like this:

$this->data('pr_datestamp', date("Y-m-d h:i:s"), true);
$this->data('pr_date', date("m/d/Y"), true);
$this->data('pr_ip', $_SERVER['REMOTE_ADDR'], true);

Bob