MailChimp

<?php
$subscrSuccess = false;
$subscrError = false;
if ($_SERVER['REQUEST_METHOD'] == 'POST'){
  if(!empty($_POST['email'])){
    $subscrSuccess = syncMailchimp($_POST['email']) == 200;
    if(!$subscrSuccess){
      $subscrError = true;
    }
  }
}
if($subscrSuccess){
    $modx->setPlaceholder('mailchimp.success','Подписка успешно оформлена!');
}
if($subscrError){
    $modx->setPlaceholder('mailchimp.error','Произошла ошибка попробуйте еще раз');
}

function syncMailchimp($email)
{
    $apiKey = 'Your API Key';
    $listId = 'Your List ID';

    $memberId   = md5(strtolower($email));
    $dataCenter = substr($apiKey, strpos($apiKey, '-') + 1);
    $url        = 'https://' . $dataCenter . '.api.mailchimp.com/3.0/lists/' . $listId . '/members/' . $memberId;

    $json = json_encode(array(
      'email_address' => $email,
      'status' => 'subscribed', // "subscribed","unsubscribed","cleaned","pending"
      'merge_fields' => array(
          'FNAME' => '',
          'LNAME' => ''
      )
    ));

    $ch = curl_init($url);

    curl_setopt($ch, CURLOPT_USERPWD, 'user:' . $apiKey);
    curl_setopt($ch, CURLOPT_HTTPHEADER, array(
        'Content-Type: application/json'
    ));
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_TIMEOUT, 10);
    curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'PUT');
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($ch, CURLOPT_POSTFIELDS, $json);

    $result   = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    return $httpCode;
}

?>