How can PHP sessions be utilized to retain form data across multiple pages?

To retain form data across multiple pages using PHP sessions, you can store the form data in session variables on the first page and then retrieve and display the data on subsequent pages. This allows the data to persist as the user navigates through different pages of the website.

// Start the session
session_start();

// Store form data in session variables
$_SESSION['name'] = $_POST['name'];
$_SESSION['email'] = $_POST['email'];

// Retrieve and display form data on subsequent pages
echo "Name: " . $_SESSION['name'];
echo "Email: " . $_SESSION['email'];