How can variables and values from a PHP page be passed to a subsequent page along with form data?

To pass variables and values from a PHP page to a subsequent page along with form data, you can use hidden input fields in the form to store the values you want to pass. When the form is submitted, the hidden input fields will be sent along with the rest of the form data to the subsequent page.

<form action="page2.php" method="post">
    <input type="hidden" name="variable1" value="<?php echo $variable1; ?>">
    <input type="hidden" name="variable2" value="<?php echo $variable2; ?>">
    <!-- Other form fields go here -->
    <input type="submit" value="Submit">
</form>
```

In page2.php, you can access the passed variables using $_POST superglobal:

```php
$variable1 = $_POST['variable1'];
$variable2 = $_POST['variable2'];