how to disable both layout and renderer on entire Zend Framework application

I know how to disable them开发者_开发知识库 on specific controller:

$this->_helper->viewRenderer->setNoRender();
$this->_helper->layout->disableLayout();

And I know how to disable renderer in the bootstrap:

Zend_Controller_Front::getInstance()->setParam('noViewRenderer', true);

Is there any chance to disable layout in the bootstrap?

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Try:

$l = Zend_Layout::getMvcInstance();
$l->disableLayout();

That will disable your layout. setNoRender will disable all output, which one do you want? (In your post you state layout)

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IFAIK the layout is disabled by default, until you enable layout resource in application.ini, so disable it there.