JRequest::setVar('name', 'John');
$input = JFactory::getApplication()->input; $input->set('action', 'save');In this example, the input object is retrieved from the Joomla application, and the set method is called to set a variable 'action' to 'save'. The JRequest setVar function is part of the Joomla platform, which is a package library that provides a set of tools and APIs for building web applications.