Json 使用 Mailchimp 的 API v3 将订阅者添加到列表

I'm trying to add users to a list I've created in Mailchimp but I can't find any code examples anywhere. I've tried figuring out how to use the API but I'm very much a "Look at an example and learn" kind of person.

我试过使用API的第2版，但似乎没有什么效果，尽管从网络上的例子来看，Mailchinp在他们的网站上说了以下关于他们API的早期版本的内容:

不推荐使用2.0及更早版本.这些版本只提供最低限度的漏洞修复和安全补丁.

UPDATE 1: I did some further research based on TooMuchPete's answer with regards to the link on Managing Subscribers and altered some code I found here, but it won't work because the function http_build_query() doesn't deal with nested arrays. I'm not sure how to deal with the 'merge_fields' portion of adding a subscriber. My current code is below:

$postdata = http_build_query(
                    array(
                        'apikey'        => $apikey,
                        'email_address' => $email,
                        'status'        => 'subscribed',
                        'merge_fields'  => array(
                            'FNAME' => $name
                        )
                    )
                );

                $opts = array('http' =>
                    array(
                        'method'  => 'POST',
                        'header'  => 'Content-type: application/x-www-form-urlencoded',
                        'content' => $postdata
                    )
                );

                $context  = stream_context_create($opts);

                $result = file_get_contents('https://us2.api.mailchimp.com/3.0/lists/<list_id>/members/', false, $context);

                var_dump($result);
                die('Mailchimp executed');

UPDATE 2:我现在求助于使用curl，我已经设法让一些东西几乎可以工作了.数据发送到Mailchimp，但我收到了错误"Your request did not include an API key."，我想我需要进行身份验证.我try 将其添加到http头中，但没有成功.见下面我的代码:

$apikey = '<api_key>';
                $auth = base64_encode( 'user:'.$apikey );

                $data = array(
                    'apikey'        => $apikey,
                    'email_address' => $email,
                    'status'        => 'subscribed',
                    'merge_fields'  => array(
                        'FNAME' => $name
                    )
                );
                $json_data = json_encode($data);

                $ch = curl_init();
                curl_setopt($ch, CURLOPT_URL, 'https://us2.api.mailchimp.com/3.0/lists/<list_id>/members/');
                curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-Type: application/json/r/n
                                                            Authorization: Basic '.$auth));
                curl_setopt($ch, CURLOPT_USERAGENT, 'PHP-MCAPI/2.0');
                curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
                curl_setopt($ch, CURLOPT_TIMEOUT, 10);
                curl_setopt($ch, CURLOPT_POST, true);
                curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
                curl_setopt($ch, CURLOPT_POSTFIELDS, $json_data);                                                                                                                  

                $result = curl_exec($ch);

                var_dump($result);
                die('Mailchimp executed');