I’ve tried a couple of ways (http://emmense.com/php-twitter/ and http://www.webmaster-source.com/2009/04/05/post-to-twitter-from-a-php-script/) to post updates to my twitter account but I am getting the response:
Basic authentication is not supported
I had a look at the twitter website and they said something about the new OAuth for authentication. Is this why my code isn’t working?
Does anyone know of some PHP code that works?
This is correct. They recently adopted OAuth as their sole login platform for 3rd party apps as a security precaution.
Check out their developer area for examples:
http://apiwiki.twitter.com/w/page/22554657/OAuth-Examples