Are there best practices for handling form navigation and data persistence in PHP to ensure a smooth user experience?

When handling form navigation and data persistence in PHP, it is important to use sessions to store form data temporarily and ensure a smooth user experience. By storing form data in sessions, users can navigate between pages without losing their input. Additionally, using proper validation and sanitization techniques will help maintain data integrity.

// Start session to store form data
session_start();

// Check if form data is submitted
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Store form data in session
    $_SESSION['form_data'] = $_POST;
    
    // Redirect to next page
    header("Location: next_page.php");
    exit;
}

// Retrieve form data from session if available
$form_data = isset($_SESSION['form_data']) ? $_SESSION['form_data'] : [];