Drupal developers have an idea about Drupal 8. The thing you may not know about it is some Symfony components. If you are working with Drupal 8.x, you will get a chance to become a part of a massive learning curve and to know about Symfony. In this post, we are going to discuss about Symfony components that added to Drupal 8 and has some of the remarkable third party libraries. Before moving ahead, let’s discuss what actually Symfony is.
Symfony is one of the best PHP based web application framework, following MVC architecture and released under the MIT license. Below are some of the Symfony components, powering the Drupal 8 core to the great extent.
HttpKernel and HttpFoundation are best for streamlining the process of converting a Request into a Response through EventDispatcher. Web Services and Content Core Initiative (WSCCI) drives Drupal 8 with an aim to transfer Drupal from a first-class CMS into first class REST server. This allows Drupal to use web serves by offering its content with minimum complexity.
ClassLoader offers tools that autoload caches and classes their locations. The autoloading mechanism is used by PHP for delegating the loading of the file, which defines the class in situations. Autoloaders like PSR-0 Class Loader and MapClassLoader are added in Symfony. If we are adding the ClassLoader component with Drupal, it allows creating Drupal module developers carefree particularly when it comes to execute module_load_include and other dependencies.
With Routing, one can simply load all the routes, and dumps a URL matcher or can able to generator particular to these routes. It simply means it designs an HTTP request for setting configuration variables.
Serializer is used for transforming objects into a specific format like XML, YAML, JSON, etc. or vice versa. For more understanding, you can look at below given image.
One can also utilize it for completing many jobs, including configuration to node and entity creation that should be delivered by a REST endpoint.
The Twig template engine has been adopted by Drupal 8. It is best for those people, who are interested in working with Drupal themes.
YAML helps to parses YAML strings and convert them in PHP arrays. With this format, one can designed to hold configuration related information that being as expressive as XML files and readable as INI files. Furthermore, it also serves as an essential component of Drupal’s Configuration Management Initiative, allowing modules to define their default configuration settings and after that allows the site builder to override the same as-and-when instructed to. YAML powers this concept of Drupal 8’s CMI, which is replacement for Features that contributed Drupal modules and proves as the robust concept.
Other than this, there are some out-of-the-box third party components like PHPUnit, Doctrine, Assetic, Composer, SR-3 Logging, EasyRDF and Guzzle. Some components of Symfony have been simplified with Drupal 8. Apart from, some non-Symfony components have added value to Drupal 8 with its performance, quality and scalability to make it more robust and maintainable.
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