Are there alternative methods to storing form data in PHP sessions besides directly saving them in session variables?

When dealing with form data in PHP sessions, an alternative method to directly saving them in session variables is to serialize the form data and store it in a single session variable. This can help to keep the session data organized and easier to manage.

// Serialize form data and store it in a session variable
$formData = $_POST; // Assuming form data is submitted via POST method
$_SESSION['form_data'] = serialize($formData);

// To retrieve the form data later
$formData = unserialize($_SESSION['form_data']);