I am currently following the documentation seen here: https://mailchimp.com/developer/marketing/api/list-members/list-members-info/ Using the PHP example:
$response = $client->lists->getList("list_id");
This returns just fine. But I would like to add in the 'unsubscribed_since' Query Parameter. How do I format the query parameters? I've tried:
$response = $mailchimp->lists->getListMembersInfo("id", array('unsubscribed_since' => '2020-01-01'));
As well as:
$response = $mailchimp->lists->getListMembersInfo("3d65de82df", ['unsubscribed_since' => '2020-01-01']);
Any help would be appreciated.