How can a PHP form process and redirect to a specific URL after submission?

To process a PHP form and redirect to a specific URL after submission, you can use the header() function to send a raw HTTP header to the browser. After processing the form data, you can use header('Location: specific_url.php') to redirect the user to the desired URL.

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data here

    // Redirect to specific URL
    header('Location: specific_url.php');
    exit;
}
?>