Get current user in drupal 8

Get current user in drupal 8

 get current user in drupal 8
Description: In drupal 7 we get the current user object by defining global $user but in drupal 8 this quite different. If you want to get current user object then follow below code.

$current_user = \Drupal::currentUser();

$uid = $current_user->id();
It returns user id of current user.

$user_mail = $current_user->getEmail();
It returns user email id.

$user_display_name = $current_user->getDisplayName();
It returns user display name.

$user_account_name = $current_user->getAccountName()
It returns user account name.

$user_roles = $current_user->getRoles();
It returns array of current user has.

$current_user->isAnonymous();
It returns true or false.

$current_user->isAuthenticated();
It returns true or false.

$current_user->getLastAccessedTime();
It returns timestamp of last logged in time for this user