Twig
Twig is a modern, secure, and flexible template engine for PHP that separates presentation logic from business logic. It provides a clean syntax with features like template inheritance, filters, and functions to generate dynamic HTML, XML, or other text-based formats. Developed as part of the Symfony framework, it is widely used in PHP applications for rendering views.
Developers should learn Twig when building PHP-based web applications, especially with Symfony or Drupal, to create maintainable and secure templates. It is ideal for projects requiring reusable components, template inheritance, and protection against XSS attacks through automatic escaping. Use cases include e-commerce sites, content management systems, and any PHP application needing dynamic HTML generation.