How can I determine programatically whether the current user is anonymous or authenticated?
asked Feb 2, 2015 at 15:29
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5 Answers
For the sake of more robust and descriptive code, you can make use of the handy User::isAnonymous() method, e.g.
if (\Drupal::currentUser()->isAnonymous()) {
// Anonymous user...
}
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2Whenever possible, use methods like this: program to the interface not the implementation. Using an IDE w/ code completion is invaluable for Drupal 8 work.– mpdonadio ♦Feb 2, 2015 at 15:39
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3For anyone else who comes across this, note that \Drupal::currentUser()->isAuthenticated() is the equivalent of D7 user_is_logged_in()– JaypanJan 16, 2017 at 8:13
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I created a custom module and I can't get this function to work. Is there something additional I need to add in my module? Thank you in advance. May 30, 2019 at 23:04
$current= \Drupal::currentUser();
if (!$current->id()) {
// is visitor
}
else {
// is logged
}
answered Feb 2, 2015 at 15:29
isAnonymous() holds the danger of not working when a site is saving data (for example in forms) in PrivateTempStore. Therefore, i prefer the following:
if (\Drupal::currentUser()->isAuthenticated()) {
// This user is logged in.
} else {
// This user is anonymous.
}
answered Dec 12, 2019 at 14:05
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Could you explain why
::isAnonymous()is different fromnot ::isAuthenticated()? Aug 4 at 1:08
Methods that you can use in Drupal 8 to check:
Use the isAuthenticated() method on the user. For example, use the following code to determine the state of the current user:
$logged_in = \Drupal::currentUser()->isAuthenticated();
Use isAnonymous() to determine if the user is anonymous:
$anynomous_user = \Drupal::currentUser()->isAnonymous();
U can use this code::
global $user;
if ($user->uid == 0) {
//user is not logged in
}else{
//user is logged in
}
answered Feb 4, 2015 at 5:29
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2
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2Yeah and use === for strict comparison and put space before and after your else for coding standards :/– klidifiaJul 9, 2019 at 4:45
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This code could match with an user that is being created, because $user->uid is NULL before the first save(). The NULL response on the uid would match with the == 0.– PauleauDec 8, 2021 at 10:58