How can I use $_POST to handle multi-page forms?

Handling multi-page forms with $_POST involves preserving form data across multiple pages:

• Use Sessions: Store the form data in PHP sessions to maintain state across pages. Example:

<?php
session_start();
if ($_SERVER["REQUEST_METHOD"] === "POST") {
    $_SESSION["formData"] = $_POST;
    header("Location: page2.php");
    exit;
}
?>

• Pass Data via Hidden Fields: Alternatively, pass data between pages using hidden form fields, though this method is less secure compared to sessions.
• Validate Data: Ensure to validate and sanitize the data as you navigate through different pages.