echo $form->hidden_field('user_id', $user_id);
echo $form->hidden_field('_token', $csrf_token);In this example, we're using the hidden_field method to create a hidden input field named "_token" and passing the value of the $csrf_token variable to it. This is a common technique used to prevent Cross-Site Request Forgery (CSRF) attacks, where an attacker tries to submit a form on behalf of the user without their knowledge. Package library for this could be Laravel Collective.