PHP2Shell is out: two critical flaws in PHP itself, published on 21 October 2026, that can hand an attacker control of a server with no login needed. Old PHP versions such as 7.x, 8.0 and 8.1 will never get the fix. Don't worry: we move your app onto Symfony running a patched PHP 8.4 in 7 days. Read the full report.
Our PHP to Symfony migration services in USA and UK are aimed at business apps that have outgrown their original code and need a structure that will hold for the next ten years. We take your existing PHP system, keep its features and data, and rebuild it as a Symfony application on PHP 8.4.
Symfony suits a particular kind of software: apps with complex business rules, many integrations and a long life ahead. Think order management, insurance quoting, logistics, B2B portals and APIs that other systems depend on. Its pieces are explicit. Services are wired through a dependency injection container, data goes through Doctrine ORM with versioned migrations, pages render in Twig, forms and input checks use the Form and Validator components, and background work runs through Messenger.
We will also tell you when Symfony is the wrong pick. A brochure site or a small CRUD app is usually faster and cheaper to build in Laravel. Our team has more than a decade of PHP behind it, and we choose the framework for the job, not the other way round.
Why businesses choose Symfony
Symfony trades a little speed at the start for clarity and stability over many years, which is the right trade for systems the business runs on.
Predictable release cycle
Symfony publishes a release schedule years ahead and offers long-term support versions, so you can plan upgrades instead of being surprised by them.
Code that large teams can share
Explicit services, typed configuration and clear bundles let several developers work on the same app without stepping on each other.
Strong building blocks
Doctrine, Twig, Messenger, the Security component and API Platform are mature and well documented, and many other PHP projects use Symfony components too.
What moves into Symfony
- Business logic rewritten as Symfony services with tests
- Database mapped to Doctrine entities and migrations
- Pages and emails rebuilt as Twig templates
- Forms and input checks moved to the Form and Validator components
- Logins, roles and access rules on the Security component
- Cron scripts turned into Console commands or Messenger handlers
- REST or GraphQL APIs on Symfony controllers or API Platform
- Deployment on PHP 8.4 with the PHP2Shell fix, SSL and backups
Our 7-day PHP to Symfony migration plan
Day 1: Model the domain
We map your tables, screens, scheduled jobs and integrations, decide the Doctrine entities and services, and fix the price.
Days 2-4: Build on Symfony
A fresh Symfony project on PHP 8.4 gets the entities, services, controllers and Twig views, one module at a time.
Days 5-6: Compare and test
Functional tests run against both systems, and you review every key workflow on a private staging URL.
Day 7: Launch
We migrate the live data, switch traffic to Symfony, keep your URLs, and monitor logs closely.
Plain PHP app vs Symfony app
How the same business system looks before and after it moves to Symfony.
| Plain PHP app | Symfony app | |
|---|---|---|
| Wiring | Globals and include files | Dependency injection container |
| Database | Handwritten SQL in many files | Doctrine ORM with versioned migrations |
| Templates | PHP echoing HTML | Twig with automatic output escaping |
| Background jobs | Loose cron scripts | Messenger queues and Console commands |
| Access control | Home-made session checks | Security component with voters and roles |
| Upgrades | No schedule, no plan | Published release calendar with LTS versions |
Why pick us for a Symfony migration
Symfony projects reward careful design up front. We spend day one getting the model right so the rest of the week moves fast.
Domain first, code second
We agree the entities and services with you before writing code, so the new app speaks your business language and is easy to extend.
Fixed price after a free review of your code.
NDA signed before you share any access.
Symfony migration for USA and UK companies
We designed this service for mid-sized firms in the United States and the United Kingdom whose operations depend on a custom PHP system that has become hard to change. Our India-based developers overlap with US Eastern hours and the UK working day, and messages are answered the same day.
Choosing an offshore Symfony team cuts the cost well below a local agency, and you still get a single project lead, a written plan and a fixed launch date.
Official sources: PHP supported versions · Symfony documentation
Frequently asked questions
Straight answers about our PHP to Symfony Migration service.
Most small and medium PHP apps move to Symfony in 7 days, from audit to launch. Very large systems get a phased plan, with the first module live on Symfony within those same 7 days and the rest moved in stages.
Choose Symfony for complex, long-lived systems with many rules and integrations, or when several teams share the code. Choose Laravel when speed of building matters more. We will recommend one honestly after looking at your app.
Yes. We map your current tables to Doctrine entities, write migration scripts, run them on a copy first and check row counts and key records before the real switch.
The new app runs on PHP 8.4 with the October 2026 fix, which closes PHP2Shell. Symfony also adds CSRF protection, Twig output escaping and a proper security layer that old PHP code often lacks.
Usually yes. Symfony's password hasher can verify common legacy hashes and upgrade them to a modern algorithm the next time each user logs in.
Yes. We work with businesses across the United States and United Kingdom on their own hours, with an NDA, a fixed price and one point of contact.
Is your PHP app still on an old version?
Send us the URL or the repository. We check it for the PHP2Shell flaw and old code for free, and tell you what a 7-day migration looks like.
Get a free migration audit