mailchimp api send email
<?php
$apiKey = "your api key found easily in your account";
$campaignId = "your campaign id, you need to create one. Use the playground to get the id";
$memberId = md5(strtolower("membermail"));
$dataCenter = substr($apiKey,strpos($apiKey,'-')+1);
$url = 'https://'. $dataCenter . '.api.mailchimp.com/3.0/campaigns/' . $campaignId .'/actions/test';
$jsonEmail = '{"test_emails":["the mail you want to send thing sat"],"send_type":"html"}';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_USERPWD, 'apikey:'.$apiKey);
curl_setopt($ch, CURLOPT_HTTPHEADER, ['Content-Type: application/json']);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $jsonEmail);
$result = curl_exec($ch);
curl_close($ch);
var_dump($result);
?>