require_once 'path/to/PhpTemplate.php'; $template = new PhpTemplate(); $template->addFile('header', 'path/to/header.tpl'); $template->addFile('body', 'path/to/body.tpl'); $template->addFile('footer', 'path/to/footer.tpl');In this example, we create a new PhpTemplate instance and add three template files: header.tpl, body.tpl, and footer.tpl. These template files will be used to construct the webpage later on. The package library for the PhpTemplate addFile method can vary, depending on the specific implementation of the PHP templating engine being used. Some popular options include Smarty, Twig, and Blade.