(Yaf >=1.0.0)
Yaf_Application::bootstrap — Call bootstrap
Run a Bootstrap, all the methods defined in the Bootstrap and named with prefix "_init" will be called according to their declaration order, if the parameter bootstrap is not supplied, Yaf will look for a Bootstrap under application.directory.
bootstrapA Yaf_Bootstrap_Abstract instance
Yaf_Application instance
Example #1 A Bootstrap()example
<?php
/**
 * This file should be under the APPLICATION_PATH . "/application/"(which was defined in the config passed to Yaf_Application).
 * and named Bootstrap.php,  so the Yaf_Application can find it 
 */
class Bootstrap extends Yaf_Bootstrap_Abstract {
    function _initConfig(Yaf_Dispatcher $dispatcher) {
        echo "1st called\n";
    }
    function _initPlugin($dispatcher) {
        echo "2nd called\n";
    }
}
?>
Example #2 Yaf_Application::bootstrap()example
<?php
defined('APPLICATION_PATH')                  // APPLICATION_PATH will be used in the ini config file
    || define('APPLICATION_PATH', __DIR__)); //__DIR__ was introduced after PHP 5.3
$application = new Yaf_Application(APPLICATION_PATH.'/conf/application.ini');
$application->bootstrap();
?>
The above example will output something similar to:
1st called 2nd called