What are the limitations of using GET vs POST methods when submitting form data in PHP?

When submitting form data in PHP, using the GET method exposes the data in the URL, which can be seen by users and may lead to security risks, especially when handling sensitive information. To address this, it is recommended to use the POST method instead, as it sends the data in the request body, keeping it hidden from users and providing a more secure way to transmit information.

<form method="POST" action="process_form.php">
    <!-- form fields go here -->
</form>