SimpleXMLElement Object
(
    [OperationRequest] => SimpleXMLElement Object
        (
            [RequestId] => 2d57bd35-f432-434f-be24-8c7f224cf233
            [Arguments] => SimpleXMLElement Object
                (
                    [Argument] => Array
                        (
                            [0] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => AWSAccessKeyId
                                            [Value] => AKIAJBCNKLCKBVSN44UA
                                        )

                                )

                            [1] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => AssociateTag
                                        )

                                )

                            [2] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => ItemId
                                            [Value] => B00UAB8LVY
                                        )

                                )

                            [3] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => Operation
                                            [Value] => ItemLookup
                                        )

                                )

                            [4] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => ResponseGroup
                                            [Value] => ItemAttributes,Images,Offers
                                        )

                                )

                            [5] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => Service
                                            [Value] => AWSECommerceService
                                        )

                                )

                            [6] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => Timestamp
                                            [Value] => 2018-10-29T07:09:32Z
                                        )

                                )

                            [7] => SimpleXMLElement Object
                                (
                                    [@attributes] => Array
                                        (
                                            [Name] => Signature
                                            [Value] => rnVD2/7O8jQdg+g82xI5gnCCPwQxe9nz81561BHY9us=
                                        )

                                )

                        )

                )

            [RequestProcessingTime] => 0.0010680620000000
        )

    [Items] => SimpleXMLElement Object
        (
            [Request] => SimpleXMLElement Object
                (
                    [IsValid] => False
                    [ItemLookupRequest] => SimpleXMLElement Object
                        (
                            [IdType] => ASIN
                            [ItemId] => B00UAB8LVY
                            [ResponseGroup] => Array
                                (
                                    [0] => ItemAttributes
                                    [1] => Images
                                    [2] => Offers
                                )

                            [VariationPage] => All
                        )

                    [Errors] => SimpleXMLElement Object
                        (
                            [Error] => SimpleXMLElement Object
                                (
                                    [Code] => AWS.MissingParameters
                                    [Message] => リクエストには、必要なパラメータが含まれていません。必要なパラメータには、AssociateTagなどがあります。
                                )

                        )

                )

        )

)