合成のプロ　ダウンロード版

https://app.rakuten.co.jp/services/api/IchibaItem/Search/20220601?applicationId=b81babe0dea9170ecdaf3c019d8709b6&affiliateId=0433111a.0d75cb85.0433111b.a7f1907e&keyword=%E5%90%88%E6%88%90%E3%81%AE%E3%83%97%E3%83%AD%E3%80%80%E3%83%80%E3%82%A6%E3%83%B3%E3%83%AD%E3%83%BC%E3%83%89%E7%89%88&format=json&formatVersion=2&hits=5&page=1&sort=standard

URL_rss=XMLを見てみる。

stdClass Object
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        (
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    [Items] => Array
        (
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    [TagInformation] => Array
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    [carrier] => 0
    [count] => 0
    [first] => 0
    [hits] => 0
    [last] => 0
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    [pageCount] => 0
)