$controller = JControllerLegacy::getInstance('Default');
$controller = JControllerLegacy::getInstance('MyCustomController');In this example, we are getting an instance of a custom controller named "MyCustomController". This controller must be defined in the project's codebase. The package library for this method is the project's custom codebase. Overall, JControllerLegacy::getInstance is a useful method to retrieve an instance of a specific controller class when working with Joomla! or other PHP projects that use a similar MVC architecture.