Upgrading autoloaders from Zend Framework 1.7 or less to 1.8
by Steven Brown on Jun.15, 2009, under Zend Framework
In versions of Zend Framework prior to 1.8 you could set Zend_Loader as the autoloader using the following:
include 'Zend/Loader.php'; Zend_Loader::registerAutoload();
As of 1.8 this will produce a deprecation warning, the easiest replacement is this:
include 'Zend/Loader/Autoloader.php'; Zend_Loader_Autoloader::getInstance()->setFallbackAutoloader(true);