How can hidden fields in a form be used to pass data between PHP scripts?

Hidden fields in a form can be used to pass data between PHP scripts by including the data as a value in the hidden input field. This data will then be sent along with the form submission and can be accessed in the receiving PHP script using the $_POST or $_GET superglobals. 

<form method="post" action="process.php">
  <input type="hidden" name="hidden_data" value="your_data_here">
  <input type="submit" value="Submit">
</form>
```

In the receiving PHP script (process.php), you can access the hidden data like this:

```php
$hidden_data = $_POST['hidden_data'];
echo $hidden_data;

Keywords

hidden fields form data passing PHP scripts POST method

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