请问怎么改变默认扩展名.phtml

在index.php里,我尝试,不行
$view = new Zend_View();
$view->setViewSuffix('htm');

再用下面,还是不行...请问..怎么改呢.
$view = new Zend_View();
$viewRenderer = new Zend_Controller_Action_Helper_ViewRenderer($view);
$viewRenderer->setViewSuffix('html');


手册胡乱试,竟然行了..但这方法好像不太对...正确的是什么?
$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
$viewRenderer->setViewSuffix('htm');

$viewRenderer = new Zend_Controller_Action_Helper_ViewRenderer($view);
    $viewRenderer->setViewSuffix('tpl');

这样是可以的......

$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
$viewRenderer->setViewSuffix('htm');
果然只有这个方法是可行的.我也测试了

可以！顶一个