<?php $recaptcha = new \ReCaptcha\ReCaptcha($secret); $resp = $recaptcha->verify($gRecaptchaResponse, $remoteIp); if ($resp->isSuccess()) { // verified! } else { $errors = $resp->getErrorCodes(); } # First, instantiate the SDK with your API credentials and define your domain. $mg = new Mailgun("key-example"); $domain = "example.com"; # Now, compose and send your message. $mg->sendMessage($domain, array('from' => '*****@*****.**', 'to' => '*****@*****.**', 'subject' => 'The PHP SDK is awesome!', 'text' => 'It is so simple to send a message.'));