mailchimp-api-add-a-member.php

<?php
// PHP Code to add a member to a MailChimp list using their API v3.0
// As described in this blog post: http://element121.com/2016/04/30/how-to-add-a-subscriber-using-mailchimps-api-with-php/
// http://developer.mailchimp.com/documentation/mailchimp/reference/lists/members/

/*
curl --request POST \
--url 'https://usX.api.mailchimp.com/3.0/lists/57afe96172/members' \
--user 'anystring:apikey' \
--header 'content-type: application/json' \
--data '{"email_address":"urist.mcvankab+3@freddiesjokes.com", "status":"subscribed"}' \
--include
*/              

// Your ID and token, you will need to REPLACE this with your own
$authToken = 'Basic cGFtaVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV3ZGUwNS11czI=';

// The new member data to send to the API, REPLACE this with your email address
$postData = array(
    'email_address' => 'test@test.com',
    'status' => 'subscribed'
);

// List id from MailChimp obtained from doing a GET on http://us2.api.mailchimp.com/3.0/lists
// REPLACE the 999999999 with yours
$list_id = "999999999";

// Setup cURL // Note the URL should be https, but that might not work locally.
// us2 is obatined from the last part of your API key
$ch = curl_init('https://us2.api.mailchimp.com/3.0/lists/'. $list_id .'/members');
curl_setopt_array($ch, array(
    CURLOPT_POST => TRUE,
    CURLOPT_RETURNTRANSFER => TRUE,
    CURLOPT_HTTPHEADER => array(
        'Authorization: '.$authToken,
        'Content-Type: application/json'
    ),
    CURLOPT_POSTFIELDS => json_encode($postData)
));

// Send the request
$response = curl_exec($ch);

// Check for errors
if($response === FALSE){
    die(curl_error($ch));
}

// Decode the response
$responseData = json_decode($response, TRUE);

// Print the date from the response
var_dump($responseData);