URLに認証用のコードを含める必要があるため、少し手間がかかります。
処理手順についてはAuthenticating REST Requestsに詳しい解説があります。また、Signed Requests Helperで、この処理を模擬できます。
define( "AWS_ENDPOINT", "http://ecs.amazonaws.jp/onca/xml" ); define( "AWS_SERVICE", "AWSECommerceService" ); define( "AWS_ACCESS_KEY", "DUMMY" ); define( "AWS_SECRET_ACCESS_KEY","dummy" ); define( "AWS_ASSOCIATE_TAG", "name-10" ); define( "AWS_VERSION", "2009-07-01" ); // リクエストURLの取得 function GetRequestUrl( $operation, $searchIndex, $keywords, $responseGroup, $sort ) { $request = array( "Service" =>AWS_SERVICE, "AWSAccessKeyId" =>AWS_ACCESS_KEY, "AssociateTag" =>AWS_ASSOCIATE_TAG, "Version" =>AWS_VERSION, "Operation" =>$operation, "SearchIndex" =>$searchIndex, "Keywords" =>$keywords, "ResponseGroup" =>$responseGroup, "Timestamp" =>gmdate( "Y-m-d\TH:i:s\Z" ), ); if( $searchIndex != "All" && $searchIndex != "Blended" ) { $request[ "Sort" ] = $sort; } // アルファベット順にソートする ksort( $request ); $parameter = ""; foreach( $request as $key=>$value ) { // 値をURLエンコードして キーと連結する $parameter .= $key."=".rawurlencode( $value )."&"; } $parameter = rtrim( $parameter, "&" ); $url = parse_url( AWS_ENDPOINT ); $sign = "GET\n" ."{$url[ 'host' ]}\n" ."{$url[ 'path' ]}\n" .$parameter; // Secret Access Keyを使用し署名を作成する $signature = base64_encode( hash_hmac( "sha256", $sign, AWS_SECRET_ACCESS_KEY, TRUE ) ); return AWS_ENDPOINT."?{$parameter}&Signature=".rawurlencode( $signature ); }
結果はXML形式ですので、たとえばsimplexml_load_file()を用いることで簡単に処理できます。上記で作成したURLにアクセスすると、次のような結果が返されます。
SimpleXMLElement Object
(
[OperationRequest] => SimpleXMLElement Object
(
[RequestId] => dummy
[Arguments] => SimpleXMLElement Object
(
[Argument] => Array
(
[0] => SimpleXMLElement Object
(
[@attributes] => Array
(
[Name] => Operation
[Value] => ItemSearch
)
)
)
)
[RequestProcessingTime] => 0.5050370000000000
)
[Items] => SimpleXMLElement Object
(
[Request] => SimpleXMLElement Object
(
[IsValid] => True
[ItemSearchRequest] => SimpleXMLElement Object
(
[Condition] => New
[DeliveryMethod] => Ship
[Keywords] => パソコン
[MerchantId] => Amazon
[ResponseGroup] => Medium
[ReviewSort] => -SubmissionDate
[SearchIndex] => Electronics
[Sort] => price
)
)
[TotalResults] => 24793
[TotalPages] => 2480
[Item] => Array
(
[0] => SimpleXMLElement Object
(
[ASIN] => B00008B0TJ
[DetailPageURL] => http://www.amazon.co.jp/%E3%82%A8%E3%83%97%E3%82%BD%E3%83%B3-EPSON
[ItemLinks] => SimpleXMLElement Object
(
[ItemLink] => Array
(
[0] => SimpleXMLElement Object
(
[Description] => Add To Wishlist
[URL] => http://www.amazon.co.jp/gp/registry/wishlist/add-item.html
)
[1] => SimpleXMLElement Object
(
[Description] => Tell A Friend
[URL] => http://www.amazon.co.jp/gp/pdp/taf/
)
[2] => SimpleXMLElement Object
(
[Description] => All Customer Reviews
[URL] => http://www.amazon.co.jp/review/product/
)
[3] => SimpleXMLElement Object
(
[Description] => All Offers
[URL] => http://www.amazon.co.jp/gp/offer-listing/
)
)
)
[SalesRank] => 1327
[SmallImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL75_.jpg
[Height] => 75
[Width] => 75
)
[MediumImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL160_.jpg
[Height] => 150
[Width] => 150
)
[LargeImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL.jpg
[Height] => 150
[Width] => 150
)
[ImageSets] => SimpleXMLElement Object
(
[ImageSet] => SimpleXMLElement Object
(
[@attributes] => Array
(
[Category] => primary
)
[SwatchImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL30_.jpg
[Height] => 30
[Width] => 30
)
[SmallImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL75_.jpg
[Height] => 75
[Width] => 75
)
[ThumbnailImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL75_.jpg
[Height] => 75
[Width] => 75
)
[TinyImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL110_.jpg
[Height] => 110
[Width] => 110
)
[MediumImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL._SL160_.jpg
[Height] => 150
[Width] => 150
)
[LargeImage] => SimpleXMLElement Object
(
[URL] => http://ecx.images-amazon.com/images/I/21EFEPRAMAL.jpg
[Height] => 150
[Width] => 150
)
)
)
[ItemAttributes] => SimpleXMLElement Object
(
[Binding] => エレクトロニクス
[Brand] => エプソン
[EAN] => 4965957830369
[Feature] => Array
(
[0] => インクジェットカートリッジ
[1] => 1個
)
[Label] => エプソン
[ListPrice] => SimpleXMLElement Object
(
[Amount] => 1260
[CurrencyCode] => JPY
[FormattedPrice] => ￥ 1,260
)
[Manufacturer] => エプソン
[MPN] => ICBK21
[PackageDimensions] => SimpleXMLElement Object
(
[Height] => 87
[Length] => 472
[Weight] => 13
[Width] => 362
)
[PackageQuantity] => 1
[ProductGroup] => CE
[ProductTypeName] => INK_OR_TONER
[Publisher] => エプソン
[ReleaseDate] => 2001-10-05
[Studio] => エプソン
[Title] => EPSON ICBK21(モノクロインクカートリッジ)
)
[OfferSummary] => SimpleXMLElement Object
(
[LowestNewPrice] => SimpleXMLElement Object
(
[Amount] => 250
[CurrencyCode] => JPY
[FormattedPrice] => ￥ 250
)
[LowestUsedPrice] => SimpleXMLElement Object
(
[Amount] => 1
[CurrencyCode] => JPY
[FormattedPrice] => ￥ 1
)
[LowestRefurbishedPrice] => SimpleXMLElement Object
(
[Amount] => 630
[CurrencyCode] => JPY
[FormattedPrice] => ￥ 630
)
[TotalNew] => 26
[TotalUsed] => 3
[TotalCollectible] => 0
[TotalRefurbished] => 6
)
[EditorialReviews] => SimpleXMLElement Object
(
[EditorialReview] => Array
(
[0] => SimpleXMLElement Object
(
[Source] => Product Description
[Content] => 黒/染料インクハイライトからシャドーまで、
[IsLinkSuppressed] => 0
)
[1] => SimpleXMLElement Object
(
[Source] => Amazon.co.jp 商品紹介
[Content] => 対応機種：PM-930C、PM-940C、PM-950C、PM-970C、PM-980C
[IsLinkSuppressed] => 0
)
)
)
)
)
)
)