情况

我尝试调用Shopify REST API，其中有50-250个以上的结果，但我无法从包含分页链接的cURL响应中获取链接标头。
来自API Documentation的用于光标分页（https://shopify.dev/tutorials/make-paginated-requests-to-rest-admin-api）的链接头示例

#...
Link: "<https://{shop}.myshopify.com/admin/api/{version}/products.json?page_info={page_info}&limit={limit}>; rel={next}, <https://{shop}.myshopify.com/admin/api/{version}/products.json?page_info={page_info}&limit={limit}>; rel={previous}"
#...

字符串
linkrel参数确实显示出来了，但是Link是空的，如下所示。
x1c 0d1x的数据
我的Shopify呼叫功能

function shopify_call($token, $shop, $api_endpoint, $query = array(), $method = 'GET', $request_headers = array()) {
    
    // Build URL
    $url = "https://" . $shop . ".myshopify.com" . $api_endpoint;
    if (!is_null($query) && in_array($method, array('GET',  'DELETE'))) $url = $url . "?" . http_build_query($query);
    
    $headers = [];
    
    // Configure cURL
    $curl = curl_init($url);
    curl_setopt($curl, CURLOPT_HEADER, TRUE);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
    // this function is called by curl for each header received
    curl_setopt($curl, CURLOPT_HEADERFUNCTION,
      function($ch, $header) use (&$headers)
      {
        $len = strlen($header);
        $header = explode(':', $header, 2);
        if (count($header) < 2) // ignore invalid headers
          return $len;
    
        $headers[trim($header[0])] = trim($header[1]);
    
        return $len;
      }
    );
    curl_setopt($curl, CURLOPT_FOLLOWLOCATION, TRUE);
    curl_setopt($curl, CURLOPT_MAXREDIRS, 3);
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
    // curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 3);
    // curl_setopt($curl, CURLOPT_SSLVERSION, 3);
    curl_setopt($curl, CURLOPT_USERAGENT, 'Sphyx App v.1');
    curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 30);
    curl_setopt($curl, CURLOPT_TIMEOUT, 30);
    curl_setopt($curl, CURLOPT_CUSTOMREQUEST, $method);
    curl_setopt($curl,CURLOPT_ENCODING,'');

    // Setup headers
    $request_headers[] = "";
    if (!is_null($token)) $request_headers[] = "X-Shopify-Access-Token: " . $token;
    
    $request_headers[] = 'Accept: */*'; // Copied from POSTMAN
    $request_headers[] = 'Accept-Encoding: gzip, deflate, br'; // Copied from POSTMAN
    curl_setopt($curl, CURLOPT_HTTPHEADER, $request_headers);

    if ($method !== 'GET' && in_array($method, array('POST', 'PUT'))) {
        if (is_array($query)) $query = http_build_query($query);
        curl_setopt ($curl, CURLOPT_POSTFIELDS, $query);
    }
    
    // Send request to Shopify and capture any errors
    $result = curl_exec($curl);
    $response = preg_split("/\r\n\r\n|\n\n|\r\r/", $result, 2);
    $error_number = curl_errno($curl);
    $error_message = curl_error($curl);
    

    // Close cURL to be nice
    curl_close($curl);

    // Return an error is cURL has a problem
    if ($error_number) {
        return $error_message;
    } else {

        // Return headers and Shopify's response
        return array('headers' => $headers, 'response' => json_decode($response[1],true));

    }
    
}

型
但是当我使用POSTMAN Collection时，我会得到一个正确格式的响应，而不会Link被截断/处理**。

的
我已经尝试了很多东西在这里通过StackOverflow论坛以及Shopify社区，但我无法解析响应头的方式与API示例或POSTMAN所示相同

• 我的问题似乎确实与PHP代码有关，但我不是cURL的专业人士。因此，我无法进一步说明：（*

此外，我不明白为什么 Postman 的标题是在正确的情况，而我的是在**小写 *
提前感谢！