php oauth2 - gives error 401

[msyadav88]

I got code for php oauth2 from here https://github.com/adoy/PHP-OAuth2
I have created the test.php but when executing the script i got this error .
http://172.16.1.26/test2/test.php?code=wxsthleqgbwwxs8iqeydmiuy4q2g2zygyjt1lt9m

Array
(
[result] => You need to enter a Username and a Password if you want to see this website.
[code] => 401
[content_type] => text/html; charset=utf-8
)

Please guide me.

[msyadav88]

On other demo , i got below error response
Array
(
[result] => Array
(
[error] => invalid_request
[error_description] => Unknown request
)
[code] => 400
[content_type] => application/json
)
I am executing the php auth code from local and the wordpress is on live. Is this is creating any problem?

[akshayvinchurkar]

same error

Array
(
[result] => Array
(
[error] => invalid_request
[error_description] => Unknown request
)

[code] => 400
[content_type] => application/json

)