public function execute()
 {
     global $wgUser, $wgExternalSharedDB;
     // Currently, inverted searches (using a column other than up_user) may not
     // be supported for preferences in the future. However this feature may be
     // supported for user "flags" if we need to do reverse lookups like these.
     // See https://wikia-inc.atlassian.net/browse/SERVICES-469.
     // --drsnyder
     echo "*******************************************************";
     echo "Warning, inverted searches on 'user_properties' may be deprecated soon. Contact the services team.";
     echo "*******************************************************";
     $closeAccountHelper = new CloseMyAccountHelper();
     $dbr = wfGetDB(DB_SLAVE, [], $wgExternalSharedDB);
     // Only get users who self-requested account closure
     $subQuery = $dbr->selectSQLText('user_properties', ['up_user'], ['up_property' => 'requested-closure-date'], __METHOD__);
     $res = $dbr->select('user_properties', ['up_user'], ['up_property' => 'requested-closure', 'up_value' => 1, 'up_user IN (' . $subQuery . ')'], __METHOD__);
     $usersClosed = [];
     $closeReason = 'User requested account closure more than 30 days ago';
     $wgUser = User::newFromName('Wikia');
     foreach ($res as $row) {
         $userObj = User::newFromId($row->up_user);
         $daysRemaining = $closeAccountHelper->getDaysUntilClosure($userObj);
         if ($daysRemaining === 0) {
             $this->output("Closing account {$userObj->getName()}...\n");
             $statusMsg1 = '';
             $statusMsg2 = '';
             $result = EditAccount::closeAccount($userObj, $closeReason, $statusMsg1, $statusMsg2, true);
             // Set an option that signifies this user was closed automatically
             $userObj->setGlobalFlag('disabled-by-user-request', true);
             // Cleanup
             $userObj->setGlobalFlag('requested-closure', null);
             $userObj->setGlobalAttribute('requested-closure-date', null);
             $userObj->saveSettings();
             $closeAccountHelper->track($userObj, 'account-closed');
             $usersClosed[] = $userObj->getName();
         }
     }
     $this->output(count($usersClosed) . " user accounts closed.\n");
 }