How can hidden input fields be used in PHP forms to pass parameters without using the URL?

Hidden input fields in PHP forms can be used to pass parameters without using the URL by including them within the form tags but setting their visibility to hidden. This allows data to be submitted along with the form without the user seeing or interacting with the fields directly. This method is useful for passing information such as user IDs, session tokens, or other sensitive data that should not be visible in the URL. 

<form method="post" action="process_form.php">
    <input type="hidden" name="user_id" value="123">
    <input type="hidden" name="session_token" value="abc123">
    <!-- Other form fields here -->
    <input type="submit" value="Submit">
</form>

Keywords

hidden input fields PHP forms parameters URL passing

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