Action view helper enables view scripts to dispatch a
given controller action; the result of the response object following the
dispatch is then returned. These can be used when a particular action
could generate re-usable content or "widget-ized" content.
_forward() or redirect are
considered invalid, and will return an empty string.
Action view helper follows that of most MVC
components that invoke controller actions: action($action,
$controller, $module = null, array $params = array()).
$action and $controller are required; if no
module is specified, the default module is assumed.
CommentController with a
listAction() method you wish to invoke in order to pull
a list of comments for the current request: