Twig is a modern, fast and secure template framework that helps developers in developing new templates and manipulating existing templates effectively. There are lots of differences between the PHP templates and Twig.Twig has its own syntax and coding standards.Enabling Twig debugging is much easy in Drupal 9. Twig debugging helps developers easily find template names and theme_suggestions hook to create new template naming structures. Every Drupal 9 site comes with a default.services.yml file in the sites/default directory. Rename it to services.yml.
