To test this: 1. Make sure you have PHP 5 with Tidy ( http://www.php.net/manual/en/tidy.installation.php ) and MB_String ( http://ar.php.net/manual/en/mbstring.installation.php ) support. 2. Move the folder to an apache dir and access the /examples folder with your browser. This has been tested so far in PHP 5.3.4. Known Issues: . There might be problems with non-ASCII-extending Characted Encodings. If you find this issue report it with a clear explanation of how the problem encoding works or even better yet, some code. . Base treating of http://www.example.com/dir/ and http://www.example.com/dir is the same. Meaning href="a.jpg" will be translated to http://www.example.com/dir/a.jpg in both cases. I don't know if this is correct or not. Future: . Add a construct_by_uri() .. (I need some live pages with microdata to test this). . Add a vocabulary validator framework on top of this. . I might (I said MIGHT not WILL) port it to C or C++. Emiliano Martínez Luque http://www.metonymie.com PS: This is way clearer than the Microformat parser I did a couple of years ago, that's because Microdata has way clearer syntax than microformats. I think that Microformats was a great idea but there were some design ideas that were overly complex and it took a lot of code gymnastics to implement them, and I really believe that Microdata is a better spec. PS2: If you need to contact me for whatever reason use the contact form in http://www.metonymie.com