elhardoum

<?php

require __DIR__ . '/vendor/autoload.php';

use \DrewM\MailChimp\MailChimp;

$mc = new MailChimp('<your-mailchimp-api-key>');
// list ID
// When a user unsubscribes from the list, they cannot be subscribed again
// via the API, so use a unique list for this mailing purpose