public function deleteDBSubnetGroup($dBSubnetGroupName) { $result = false; $options = ['DBSubnetGroupName' => (string) $dBSubnetGroupName]; $response = $this->client->call(ucfirst(__FUNCTION__), $options); if ($response->getError() === false) { $sxml = simplexml_load_string($response->getRawContent()); $result = true; } return $result; }