This is a modified version of LightOpenId by mewp on Gitorious. It allows client to force a specific OpenId endpoint URL. This is useful for organization applications wishing to authenticate with Google Apps Federated Login. You can specify the Google Apps Federated Login endpoint url directly with:
$openid = new LightOpenId('localhost'); // replace with your host
$openid->version = 2;
$openid->server = 'https://www.google.com/a/YOURDOMAIN.com/o8/ud?be=o8';
$openid->identity = 'http://specs.openid.net/auth/2.0/identifier_select';
For more usage examples, see example.php and example-google.php.