That code is the oauth_verifier. Did you use 'oob' as the $callback parameter in step 2? If you instead provide a callback url, the oauth_verifier will be passed to the callback url as a query string parameter, and the user will never see it.
Try this guide: http://developer.yahoo.com/oauth/guide/oau...w_tutorial.html
The above url is not working please help me
Thank you