I want my website to automatically post status updates to a particular twitter account using OAuth in PHP.

I test this using a URL

www.mysite.com/update_status

but it asks me for "user name" and "password", which is fine when I am testing it. But my website will not be able to insert this user name and password before posting the status update.

So the question is how can a website which is in the server, automatically post a status update to an account without user filling out the user name and password.

Is there any way to bypass this? I tried saving oAuth tokens, but it's not working.

Thank you for your answer in advance!