What are some popular PHP template engines and their advantages compared to traditional PHP?

When working with PHP, using template engines can help separate the presentation layer from the business logic, making the code more maintainable and easier to work with. Some popular PHP template engines include Twig, Smarty, and Blade. These template engines offer advantages such as cleaner syntax, better separation of concerns, and improved performance compared to traditional PHP.

// Example using Twig template engine
require_once 'vendor/autoload.php';

$loader = new \Twig\Loader\FilesystemLoader('templates');
$twig = new \Twig\Environment($loader);

echo $twig->render('index.html', ['name' => 'John Doe']);