What are the differences between using GET and POST methods in PHP forms, and which one is recommended for security reasons?

When submitting form data in PHP, the main differences between using the GET and POST methods are how the data is sent and displayed. GET sends data through the URL, which can be seen and bookmarked by users, while POST sends data in the HTTP request body, keeping it hidden. For security reasons, it is recommended to use the POST method for forms that involve sensitive data, as it provides better protection against data tampering and unauthorized access.

<form method="post" action="process_form.php">
    <!-- Form fields go here -->
    <input type="submit" value="Submit">
</form>