| 1 user.module | user_is_anonymous() | 
Determines if the current user is anonymous.
Return value
bool: TRUE if the user is anonymous, FALSE if the user is authenticated.
File
- core/modules/ user/ user.module, line 1358 
- Enables the user registration and login system.
Code
function user_is_anonymous() {
  // Menu administrators can see items for anonymous when administering.
  return !$GLOBALS['user']->uid || !empty($GLOBALS['menu_admin']);
}
