In PHP, what are some best practices for handling form data submission without relying on traditional submit buttons?

When handling form data submission without relying on traditional submit buttons, one common practice is to use JavaScript to intercept form submission events and send the data asynchronously to the server using AJAX. This allows for a more dynamic and seamless user experience without having to reload the entire page.

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST["submit"])) {
    // Handle form data submission here
    $name = $_POST["name"];
    $email = $_POST["email"];
    
    // Process the data further or save it to a database
}
?>