how to clear all form variables like $this->validation->myvar ?

[eluser]brookerrj[/eluser]
I run this after I have successfuly stored the form data in the database.
I am using the later Form Validation class.

Code:

foreach ($_POST as $key => $field)
{
    $this->form_validation->set_rules($key, '');
}

It appears to work well.