I could successfully get email of the user while logging in with google, facebook, and vkontakte. Twitter by default doesno allow getting an email of the user. After a request I got this permission and in my Twitter apps I have Request email addresses from users as checked.
But in the result array I get a lot of data with twits, username, timezone, etc. except the email. What can be the problem?
It was not yet implemented in Yii2. It is going to be probably added very soon. Now it is not possible to send twitter params with default configuration
It is
return $this->api('account/verify_credentials.json', 'GET');
inside the AuthClient,
but it must be
return $this->api('account/verify_credentials.json', 'GET', ['include_email' => 'true']);