https://app.rakuten.co.jp/services/api/IchibaItem/Search/20220601?applicationId=b81babe0dea9170ecdaf3c019d8709b6&affiliateId=0433111a.0d75cb85.0433111b.a7f1907e&keyword=10%EF%BC%85OFF%E3%80%90%E3%83%A1%E3%83%BC%E3%83%AB%E4%BE%BF%2810%29%E3%80%91+%E3%82%B0%E3%83%B3%E3%82%BC+GUNZE+%E3%82%AD%E3%83%86%E3%83%9F%E3%83%AB+kitemiru+%E7%B6%BF100%EF%BC%85+%E6%9F%94%E3%82%89%E3%81%8B%E3%82%B3%E3%83%83%E3%83%88%E3%83%B3+%E3%82%AD%E3%83%A3%E3%83%9F%E3%82%BD%E3%83%BC%E3%83%AB&format=json&formatVersion=2&hits=30&page=1&sort=standard

URL_rss=XMLを見てみる。

stdClass Object
(
    [GenreInformation] => Array
        (
        )

    [Items] => Array
        (
        )

    [TagInformation] => Array
        (
        )

    [carrier] => 0
    [count] => 0
    [first] => 0
    [hits] => 0
    [last] => 0
    [page] => 1
    [pageCount] => 0
)