Zend_Cache_Frontend_Capture is like
Zend_Cache_Frontend_Output but designed for a complete page.
It's impossible to use Zend_Cache_Frontend_Capture for
caching only a single block. This class is specifically designed to operate in
concert only with the Zend_Cache_Backend_Static backend to
assist in caching entire pages of HTML / XML
or other content to a physical static file on the local filesystem.
Please refer to the documentation on
Zend_Cache_Backend_Static for all use cases pertaining to
this class.
Note
This frontend operates by registering a callback function to be called
when the output buffering it uses is cleaned. In order for this to operate
correctly, it must be the final output buffer in the request. To guarantee
this, the output buffering used by the Dispatcher must be
disabled by calling Zend_Controller_Front's
setParam() method, for example,
$front->setParam('disableOutputBuffering', true); or adding
"resources.frontcontroller.params.disableOutputBuffering = true"
to your bootstrap configuration file (assumed INI) if using
Zend_Application.