Documentation is available at v2_0_comment_getRecent.php
<?php require_once 'config.php'; require_once 'Services/Digg2.php'; $sd = new Services_Digg2; $sd->setVersion('2.0'); $sd->setURI("http://services.digg.com"); $result = $sd->comment->getRecent(); var_dump($result);exit; ?>