In PHP form handling, what are the advantages and disadvantages of using hidden fields versus submit buttons?

When handling forms in PHP, hidden fields are useful for passing data between pages without displaying it to the user, while submit buttons are used to trigger form submission. Advantages of using hidden fields: - Data can be passed between pages securely without displaying it to the user - Useful for storing information that should not be edited by the user Disadvantages of using hidden fields: - Data can be manipulated by users if not properly validated - Submit buttons are more user-friendly and intuitive for triggering form submission Advantages of using submit buttons: - Clearly indicates to the user that the form can be submitted - Provides a visual cue for the user to take action Disadvantages of using submit buttons: - Cannot pass data between pages without submitting the form - May clutter the form interface if multiple submit buttons are used

<form action="process_form.php" method="post">
    <input type="hidden" name="hidden_field" value="hidden_value">
    <input type="submit" name="submit_button" value="Submit Form">
</form>