'guest', 'name' => 'Guest' ]); } /** * Returns the user's avatar, * Uses Gravatar as the avatar service. * @param int $size * @return string */ public function getAvatar($size = 50) { $emailHash = md5(strtolower(trim($this->email))); return '//www.gravatar.com/avatar/' . $emailHash . '?s=' . $size . '&d=identicon'; } }