这段代码使用 curl 和 json 有什么问题？

Question

我有这段代码，我想在 curl 响应中获取“项目”的所有数据，当我使用浏览器访问 URL 时，它会显示所有“项目”，但是使用这段代码，curl 响应正在工作，但是“items”为空，代码如下：$eop = 0;$newest = 0;while($eop == 0) {    $url='https://shopee.ph/api/v2/search_items/?by=ctime&limit=30&match_id=49133756&newest=0&order=desc&page_type=shop&version=2';         $ch = curl_init($url);          curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);         $response = curl_exec($ch);         $http = curl_getinfo($ch, CURLINFO_HTTP_CODE);      print_r($response);    curl_close($ch);    if ($http == 200) {     $products = @json_decode($response, TRUE);                  $items = $products['items'];        if (count($items) > 1 ) {           foreach ($items as $item) {             $id = $item['itemid'];                      echo $id . '<br>';        }        } else {            $eop=1;        }    }    $newest = $newest + 30;}这是回应：{"show_disclaimer":null,"query_rewrite":null,"adjust":null,"version":"b1c94828d525e526ff969f451cc3ac33","algorithm":null,"total_count":null,"error":null,"total_ads_count":null,"nomore":null,"price_adjust":null,"json_data":null,"suggestion_algorithm":null,"items":null,"reserved_keyword":null,"hint_keywords":null}

Answer 1

随机猜测后，我发现如果您不提供 User-Agent 标头，指定的 API 将不会返回任何项目。

这是我的版本：

<?php

$eop = 0;

$newest = 0;

while($eop == 0) {

    $url='https://shopee.ph/api/v2/search_items/?by=ctime&limit=30&match_id=49133756&newest=0&order=desc&page_type=shop&version=2';

    $ch = curl_init($url);

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

    curl_setopt($ch, CURLOPT_HTTPHEADER, array("user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36"));

    $response = curl_exec($ch);

    $http = curl_getinfo($ch, CURLINFO_HTTP_CODE);

    print_r($response);

    curl_close($ch);

    if ($http == 200) {

    $products = json_decode($response, TRUE);

        $items = $products['items'];

        if (count($items) > 1 ) {

           foreach ($items as $item) {

            $id = $item['itemid'];

            echo $id . '<br>';

        }

        } else {

            $eop=1;

        }

    }

    $newest = $newest + 30;

}