Hi Nicolás, If you can share your basestring and signature we can take a look at what's going wrong. Alternatively consider using a pre-written PHP library which handles this for you. There are some PHP libraries listed on our developer resources site which are popular with developers: http://dev.twitter.com/pages/oauth_libraries#php
Best @themattharris Developer Advocate, Twitter http://twitter.com/themattharris 2010/12/17 Nicolás López Zerpa <nico89...@gmail.com> > Hello everyone. > About a month ago, I've added to our news website the feature to login > using Twitter. It uses OAuth to get the Twitter user data. > > However, since a few days ago, it doesn't work anymore. Nobody changed > that feature recently; when I want to sign in, I get an 401 error: > "Failed to validate oauth signature and token". The script fails when > it makes a request to https://api.twitter.com/oauth/request_token > > I've also made some little test with PHP OAuth classes I've found on > the Internet and I couldn't either make my app work. > > Please, let me know if you need more info, or if Twitter changed > something and I have to modify my app. > > Thanks in advance :) > > -- > Twitter developer documentation and resources: http://dev.twitter.com/doc > API updates via Twitter: http://twitter.com/twitterapi > Issues/Enhancements Tracker: > http://code.google.com/p/twitter-api/issues/list > Change your membership to this group: > http://groups.google.com/group/twitter-development-talk > -- Twitter developer documentation and resources: http://dev.twitter.com/doc API updates via Twitter: http://twitter.com/twitterapi Issues/Enhancements Tracker: http://code.google.com/p/twitter-api/issues/list Change your membership to this group: http://groups.google.com/group/twitter-development-talk