- $user = $this->getUserWithAttributes($userName, array_filter(array_merge($displayNameAttr, [
- 'cn', 'dn', $idAttr, $emailAttr, $thumbnailAttr,
- ])));
+ $user = $this->getUserWithAttributes($userName, array_filter([
+ 'cn', 'dn', $idAttr, $emailAttr, ...$displayNameAttrs, $thumbnailAttr,
+ ]));