I want to get the user id and role before the user is logged in. If i have the email or username, what function can I use with D8 to get the user id ?

2 Answers 2


You can load the user with loadByProperties():

$users = \Drupal::entityTypeManager()->getStorage('user')
  ->loadByProperties(['mail' => $mail]);
$user = reset($users);
if ($user) {
  $uid = $user->id();
  $rids = $user->getRoles();
  • thanks what about the user name?
    – Diana
    Sep 23, 2016 at 14:07
  • also the syntax is wrong on this, the mail is not closed with a ] and the double arrow shouldnt be there. can you give me the right syntax please?
    – Diana
    Sep 23, 2016 at 14:17
  • 2
    The syntax should be OK. The properties are in an array. You can place any field in this array. For the username: ['name' => $name] or both at the same time: ['name' => $name, 'mail' => $mail]
    – 4uk4
    Sep 23, 2016 at 14:58

Drupal 8 now also has these specific functions:


$user = user_load_by_name('some user');
$uid = $user->id();



$user = user_load_by_mail('[email protected]');
$uid = $user->id();


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