Clear contact->org association via Connect for PHP
I know how to create a new org object. I know how to associate an existing org object to the contact record.
I know I'm forgetting something that I'll be kicking myself for once someone points me in the right direction, but ...
How do I CLEAR the contact->organization association? A contact tells me that she is no longer a member of a particular company, so I want to clear that association. Easy to do in the console, but I want to set up a page where customer's can clear that association themselves.