Is it possible to determine where form data is being sent in a PHP program?

To determine where form data is being sent in a PHP program, you can inspect the "action" attribute of the HTML form element. This attribute specifies the URL where the form data will be sent upon submission. You can also look for any AJAX requests or form handling functions in the PHP code that indicate where the form data is being processed.

```php
<form action="process_form.php" method="post">
  <!-- Form fields go here -->
</form>
```

In the above code snippet, the form data will be sent to "process_form.php" when the form is submitted.