How can hidden fields in a form be used to streamline data transfer between pages in PHP?

Hidden fields in a form can be used to pass data between pages in PHP by storing values that are not visible to the user. This can streamline data transfer by allowing information to be carried over from one page to another without the need for additional user input. By setting hidden input fields with the desired values in a form, the data can be easily accessed and processed on the receiving page. 

<!-- Form on page1.php -->
<form action="page2.php" method="post">
    <input type="hidden" name="username" value="JohnDoe">
    <input type="hidden" name="email" value="johndoe@example.com">
    <input type="submit" value="Submit">
</form>
```

```php
// page2.php
$username = $_POST['username'];
$email = $_POST['email'];

echo "Username: " . $username . "<br>";
echo "Email: " . $email;

Keywords

hidden fields form data transfer PHP pages

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