<?php require 'americommerce.php'; session_start(); $api = new ApiClient(); parse_str($_SERVER['QUERY_STRING'], $qs); $r = $qs['r']; $original_return_url = 'http://localhost/php_demo/callback.php?r=' . urlencode('http://localhost/php_demo'); $auth_id = $qs['auth_id']; $code = $qs['code']; $token = $api->getToken($auth_id, $code, $original_return_url); $_SESSION['api_user'] = $token; header("Location: " . $r); die;