Creating OAuth2.0 server with pure PHP

Is all you need: https://laravel.com/docs/5.4/passport (if you work with Laravel)

Thanks bro, but I want with Pure PHP :-)

Why reinvent the wheel the wheel haha? Passport is amazing.

I agree with @lars6 that not using passport is reinventing wheel, but as you wish: https://github.com/thephpleague/oauth2-server.

If for any reason you would prefer to not use laravel, use https://lumen.laravel.com/ and implement https://packagist.org/packages/dusterio/lumen-passport.

Thank you all brothers :-)