RenderLayout Method for a Custom MVC Framework

Let's now create the renderLayout method. This method will take the layout file and substitute the values of the variables $title and $content (it will be passed as a parameter of the method and will represent the result of the renderView method):

<?php
	private function renderLayout(Page $page, $content) {
		$layoutPath = $_SERVER['DOCUMENT_ROOT'] . "/project/layouts/{$page->layout}.php";
		
		if (file_exists($layoutPath)) {
			ob_start();
				$title = $page->title;
				include $layoutPath; // here the variables $title and $content will be available
			return ob_get_clean();
		}
	}
?>