php code needed [Must read the details]

Looking for someone who is able to code an OAuth2 PHP script for Mac Access Authentication, reference: [login to view URL] Note: It's not for my own server, in fact, its to login to another server requiring this login. I'd prefer for it to randomly generate the OAuth2 login as it's been done with C#. Should be a quick project for someone who knows PHP well. I can provide an example code of this working in C# if needed.