What’s New in Symfony 4?

Symfony is a popular PHP framework that was designed as a collection of reusable and standalone components. It enables programmers to develop web applications in the most efficient way using more than fifty PHP components. However, this open-source framework has been consistently evolving in order to make web development tasks simpler and easier for modern requirements.

The fourth major update of Symfony (4) was designed as a micro and a thin web framework, which produces much leaner applications than Symfony 3. However, Symfony 4 is packed with many new improved features and bug fixes that allows developers to build applications in a faster and easier way. Therefore, it becomes necessary for developers to learn and understand what new improvements has been made in this framework.  

#1 An Improved Framework to Work With

Symfony 4 is an improved version of Symfony 3 that doesn’t have any unnecessary and obsolete plugins. It represents enhanced web development concepts, such as removing application bundles, easy navigation of the application directory, calling config parameters as environment variables and many other improvements that makes it easier to learn, install, configure and deploy. It requires much lesser files and codes to be written.  

#2 Automate Every Task with Symfony Flex

Symfony 4 is incorporated with Symfony Flex, a new way to automate common tasks and organize PHP applications. Symfony Flex will automate installation and un-installation of bundles as well as create their initial config for better developer experience. There is also a set of Symfony Recipes that further enables developers to integrate a plethora of third party bundles and packages into Symfony web applications.

#3 Better Dependency Injection Mechanism with Auto wiring

Symfony 4 is powered with enhanced Dependency Injection Mechanism that relieves developers from defining services one after one. Thanks to Auto wiring. It automatically detects what services to use based on their identifiers.It automatically fetches individual classes as particular services. It also allows developers to store code as services and use it as and when needed. Auto wiring thus helps to automate configuration without needing further effort from developers.

#4 Enhanced Directory Structure

With every new version release of Symfony, we have seen an enhanced directory structure. Symfony 4 has a smaller and better directory structure that allows programmers to develop applications without using bundles by putting similar files in a certain directory. This makes easier for developers to keep the code base organized without creating sub-directories.

#5 Symfony 4 is Much Smaller Than Symfony 3

Applications build on Symfony 4 are based on a micro-kernel design that requires 70% lesser codes and files than Symfony 3. The leanest version,Symfony 4, allows developers to start small with any web app without creating unnecessary dependencies. And, as the project scales up, the developers can then speed up and grow at their own pace.

#6 Hassle-Free Upgrade Promise

If you are looking to upgrade your existing applications to Symfony 4, the framework offers Backward Compatibility Promise, so you can seamlessly upgrade to Symfony 4 for a better experience. First, you are required to upgrade your apps to Symfony 3.4 that offers absolute compatibility with any 3.x version, and then solve any reported deprecation. Your application is now ready to instantly upgrade to Symfony 4 Or, you can contact Velox Softech as we have a pool of talented PHP developers that can help  you upgrade your applications with ease.