How can PHP developers effectively manage the flow of form submission, data processing, and redirection to ensure a seamless user experience?

To effectively manage the flow of form submission, data processing, and redirection in PHP, developers can use conditional statements to check if the form has been submitted, process the form data, and redirect the user to a new page upon successful submission.

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Process form data
    $name = $_POST['name'];
    $email = $_POST['email'];
    
    // Redirect to a success page
    header("Location: success.php");
    exit();
}
?>