<?php session_start(); $steam = new SteamAuth(); $steam->setReturnUrl('example.php'); if ($steam->verifyLogin()) { $steam->setSteamKey('API_KEY'); //YOU CAN GET THIS HERE https://steamcommunity.com/dev/apikey $user = $steam->loadProfile(); $_SESSION['user'] = $user->personaname; echo '<pre>' . print_r($user, true) . '</pre>'; } else { if (!isset($_SESSION['user'])) { echo $steam->getAuthButton(); } } if (isset($_SESSION['user'])) { echo 'Welcome, ' . $_SESSION['user'] . '!'; }