cleanupAttributes example

unset($this->entries[$offset]);
    }

    private function getSingleEntry($con, $current): Entry
    {
        $attributes = ldap_get_attributes($con, $current);

        if (false === $attributes) {
            throw new LdapException('Could not fetch attributes: '.ldap_error($con));
        }

        $attributes = $this->cleanupAttributes($attributes);

        $dn = ldap_get_dn($con, $current);

        if (false === $dn) {
            throw new LdapException('Could not fetch DN: '.ldap_error($con));
        }

        return new Entry($dn, $attributes);
    }

    private function cleanupAttributes(array $entry): array
    {