Learn how to migrate to the PHP framework Symfony

SensioLabs and Smile released a joint white paper “PHP framework migration: from legacy to Symfony” explaining how to migrate to modern PHP frameworks like Symfony. Find a selection of the key information in this infographic design by SensioLabs.


The PHP ecosystem

Designed in 1994, PHP is an open-source programming language that facilitates interactions between databases and servers. PHP is the foundation of many applications and allows you to structure your code. 

Used by more than 78.2% of websites, PHP is one of the dominant computer languages. Because of its open-source nature, PHP relies, like Symfony, on a worldwide community ready to contribute. Thanks to this large community, the PHP language has evolved until its last release: version 8 in December 2020.

PHP often comes with frameworks that allow to structure the code and facilitate the work of developers. Some companies have developed “in-house” frameworks. But using an open-source framework is the most popular option: of course Symfony, but also Laravel, Yii, Code Igniter, CakePHP, or Zend. 

How to identify code obsolescence?

On the one hand, many websites run on legacy code transmitted between developers. When using code legacy, the risk is to have a complex developement projects: quick fixes and patches will be sometimes useless. Moreover, it is difficult to know if a modification will solve the problem or exacerbate it.

On the other hand, some PHP frameworks are not maintained over time. The code is no longer updated, nor adapted to recent evolutions. It induces security risks for applications based on these frameworks.

That’s why, in order to recognize the obsolescence of your framework, we have listed in the white paper 10 signs to pay attention to. The infographic design highlights 3 critical signs to monitor to prevent obsolescence.

Why migrate your PHP code to Symfony?

To overcome the challenge of obsolescence, you can migrate to Symfony. Symfony is an Open-Source PHP framework, providing modular and adaptable features. In addition to this, Symfony is maintained over time, offering a stable working environment. You can check the roadmap on the Symfony website to see the maintenance level of your application.

Symfony makes developers’ life easier and speeds up the development of a website. Symfony is based on a large and very active community of more than 600,000 developers across 120 countries. Free and Open Source, the framework Symfony achieves more than 9 million downloads per day.

At the same time, Symfony adapts to the challenges of many businesses. When a company migrates to Symfony, it influences many jobs and not only developers. But also managers, project managers, and system administrators. In the infographic design, we explain the benefits of Symfony for each role within a company.

Symfony is a safe choice

Symfony is a safe choice for your future, thanks to its predictable release cycle. A new version of Symfony is released every 6 months, offering improved features. Every 2 years, Symfony launches a new major version and long-lasting support.

The other advantage of Symfony is that updates are continuous. It allows you to manage deprecations gradually and to migrate smoothly. Backward compatibility is also a major feature of Symfony and greatly simplifies migrations between minor versions.

Migrate your PHP code to Symfony with SensioLabs

To conclude, do you need to change your PHP framework or to upgrade your Symfony application? SensioLabs, the creator of Symfony, helps you migrate to the latest versions of the Symfony framework in a Migration Workshop.

You can find our blog post about the white paper “Migrating to Symfony from legacy PHP code” and download the white paper here.