How can PHP developers ensure that form data is properly submitted using POST method rather than GET method?

To ensure that form data is properly submitted using the POST method rather than the GET method, PHP developers should set the form method attribute to "post" in the HTML form tag. This will ensure that the form data is sent securely in the request body rather than in the URL. Additionally, developers can check the request method in their PHP script to ensure that the form data is being submitted using the POST method.

<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
    // Form data is being submitted using the POST method
    // Process the form data here
} else {
    // Redirect or display an error message if form data is not submitted using the POST method
}