Quick PHP function to check if this email is subscribed in Sendy

checkme.php

<?php

// A quick PHP function to check if a user is subscribed to your newsletter in Sendy.
// You need a Sendy API key; the list ID for your newsletter; and obviously your Sendy installation address.

// To use this
if (check_if_subscribed("[email protected]")=="Subscribed") {
  echo "Yay!";
} else {
  echo "Boo!";
}

function check_if_subscribed($email) {
  GLOBAL $config;
  $data = array('api_key' => $config['sendy-apikey'], 'email' => $email, 'list_id' => $config['sendy-listid']);
  $yoursendyinstallation = "https://sendy.example.com";
  $handle = curl_init($yoursendyinstallation.'/api/subscribers/subscription-status.php');
  curl_setopt($handle, CURLOPT_POST, true);
  curl_setopt($handle, CURLOPT_POSTFIELDS, $data);
  curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
  $result = curl_exec($handle);
  curl_close($handle);
  return($result); // this returns "Subscribed" if the email address is subscribed.
}