如何使用PHP的Guzzle将此Mailchimp API请求转换为Curl？

我有一个使用Mailchimp API的curl请求，但我想尝试使用Guzzle。我无法使Guzzle的请求正常工作。

我想要的是将API响应转换为我可以操作的php数组。

我尝试了以下代码将curl转换为guzzle，但它并没有起作用。

这段代码很好用

    function apiRequest($url,$post = NULL) {
        global $api_key;
        $httpHeader = array(
            'Accept: application/vnd.api+json',
            'Content-Type: application/vnd.api+json',
            'Authorization: apikey ' . $api_key
        );
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $httpHeader);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        if(isset($post)) curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
        $responseContent = curl_exec($ch);
        $response['headers'] = curl_getinfo($ch);
        curl_close($ch);
        return json_decode($responseContent,true);
    }

当我尝试这段 Guzzle 代码时，我看不到请求的结果，但我也没有获得错误。

    $client = new GuzzleHttp\Client();
    $json = $client->request('GET', $url, [
    'headers' => [
        'Authorization' => 'apikey ' . $api_key,
        'Accept' => 'application/json',
        'Content-type' => 'application/json'
    ]]);

期望的结果是一个数组，我可以通过类似以下的数据来操作它:

Array
(
    [id] => 14721
    [name] => 2019_3_test
    [member_count] => 1
    [type] => static
    [created_at] => 2019-03-23T00:55:02+00:00
    [updated_at] => 2019-03-23T00:55:02+00:00
    [list_id] => f4f3d03d5f
)

实际结果是这个:

GuzzleHttp\Psr7\Response Object ( [reasonPhrase:GuzzleHttp\Psr7\Response:private] => OK [statusCode:GuzzleHttp\Psr7\Response:private] => 200 [headers:GuzzleHttp\Psr7\Response:private] => Array ( [Server] => Array ( [0] => openresty ) [Content-Type] => Array ( [0] => application/json; charset=utf-8 ) [Content-Length] => Array ( [0] => 1326 ) [Vary] => Array ( [0] => Accept-Encoding ) [X-Request-Id] => Array ( [0] => 342c0c4b-5629-4bc4-aa7d-4a7f6d51af7b ) [Link] => Array ( [0] => ; rel="describedBy" ) [Date] => Array ( [0] => Sat, 23 Mar 2019 04:43:57 GMT ) [Connection] => Array ( [0] => keep-alive ) [Set-Cookie] => Array ( [0] => _AVESTA_ENVIRONMENT=prod; path=/ [1] => _mcid=1.746c6e8ecb1ba60edb191ed80a3c86c1; expires=Sun, 22-Mar-2020 04:43:57 GMT; Max-Age=31536000; path=/; domain=.mailchimp.com ) ) [headerNames:GuzzleHttp\Psr7\Response:private] => Array ( [server] => Server [content-type] => Content-Type [content-length] => Content-Length [vary] => Vary [x-request-id] => X-Request-Id [link] => Link [date] => Date [connection] => Connection [set-cookie] => Set-Cookie ) [protocol:GuzzleHttp\Psr7\Response:private] => 1.1 [stream:GuzzleHttp\Psr7\Response:private] => GuzzleHttp\Psr7\Stream Object ( [stream:GuzzleHttp\Psr7\Stream:private] => Resource id #40 [size:GuzzleHttp\Psr7\Stream:private] => [seekable:GuzzleHttp\Psr7\Stream:private] => 1 [readable:GuzzleHttp\Psr7\Stream:private] => 1 [writable:GuzzleHttp\Psr7\Stream:private] => 1 [uri:GuzzleHttp\Psr7\Stream:private] => php://temp [customMetadata:GuzzleHttp\Psr7\Stream:private] => Array ( ) ) )