A RESTful persistence solution usable with backbone.js… in PHP?

I'll preface this with saying that I'm a crappy programmer, I'm sure that what I want to do could be done in 10 lines of node or Rails or something else, but PHP is what I have available.

Why this table In-Cell editor, doesnt work?

I am trying to figure out, how the primefaces in-cell editor works.

HTTP PUT Parameter

I create a rest-webservice with the php framework "tonic". I have a User Class and handle it with the library. According to CRUD i use HTTP_PUT to UPDATE the User: