PHP library to output Schema.org microdata markup

Hi,
I'm working now on a PHP library that uses the schema.org vocabulary to 
implement and output Microdata and RDFa Lite 1.1 markup.
For more information about the library take a look here: 
https://github.com/PAlexcom/PHPMicrodata

In order to render valid markup the library uses a .json 
<https://github.com/PAlexcom/PHPMicrodata/blob/master/types.json> file 
which contains all Schema.org available Types and Properties. (that 
..json <https://github.com/PAlexcom/PHPMicrodata/blob/master/types.json> 
file was automatically generated with the 
https://github.com/PAlexcom/Spider4Schema web bot)

*Question:*
--- Is there any official .JSON file, .XML file or whatever file that 
contains all Schema.org available Types and Properties?
I've found the http://schema.rdfs.org/ website, but I see that the files 
are non official.

Thanks,
Alexandru Pruteanu (P.Alex)
web.is.art@p-alex.com
http://p-alex.com