<?php include 'EpiCurl.php'; include 'EpiOAuth.php'; include 'EpiTwitter.php'; include 'keys.php'; $Twitter = new EpiTwitter($consumerKey, $consumerSecret); echo '<a href="' . $Twitter->getAuthenticateUrl() . '"> <img src="twitterButton.png" alt="sign in with twitter" /> </a>'; ?>