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PHP Development

PHP development across Europe: Laravel and Symfony builds, PHP 8 upgrades and legacy rescue, written securely and reviewed in-house. Free quote.

Manual, expert-ledEvidence-based findingsFree remediation retest

PHP development still runs a huge share of the web, and done well it is fast, maintainable and cheap to host; done badly it is the source of half the breaches we clean up. We build and rescue PHP applications for companies across Europe, on modern frameworks and current PHP versions, written by developers who learned the language next to the people who exploit it.

Context first. SafetyBis is a European cybersecurity firm, and the development practice you are reading about is a separate team from our penetration testers, with its own contracts and deliverables. The reason that pairing matters for PHP specifically is history: PHP earned its bad security reputation from a decade of tutorials teaching people to concatenate user input straight into SQL queries. Our developers know exactly which mistakes those were, because our other team still finds them in the wild, so the PHP we ship does not repeat them.

What PHP development covers here

PHP is not the language it was ten years ago. Modern PHP 8 with a proper framework is strongly typed where it counts, genuinely fast, and pleasant to work in. We use it for the jobs it does best: web applications, APIs, content platforms and the back ends behind stores and portals. We are equally at home writing new code and untangling someone else’s.

New applications on Laravel or Symfony, built to current standards
Custom REST and GraphQL APIs with authentication and rate limiting
Custom WordPress plugins and themes written as real, tested code
Modernising legacy PHP: framework migration and PHP 8 upgrades
Refactoring untested spaghetti code into something maintainable
Integrations with payment, CRM, ERP and third-party APIs
Performance profiling, caching and database query tuning

Frameworks and how we choose

We do not start every project by reaching for the same tool. The framework follows the job, and part of what a good PHP development company gives you is an honest recommendation rather than whatever the team happens to like this year.

Laravel

For most new web applications, Laravel gets you moving quickly without cutting corners: a clean structure, a strong ecosystem, and conventions that keep a growing codebase readable. We use it for products, portals and internal tools where speed of delivery matters and the domain is not unusually complex.

Symfony

Where an application is large, long-lived or has demanding architectural needs, Symfony’s components and stricter structure pay off. It is the choice when a system will be maintained for years by a rotating team and needs to stay disciplined.

WordPress as a development platform

WordPress is PHP too, and a lot of “PHP development” in practice means writing a proper custom plugin or theme rather than piling on someone else’s. We treat WordPress code as real software: version-controlled, tested, and hardened, not a pile of snippets copied from a forum.

PHP 8
current, supported versions, not end-of-life releases
Fixed
milestone pricing agreed before we start
In-house
security review of the code we ship

How we write PHP

The difference between cheap PHP and good PHP is not the language, it is the discipline. Our approach is boring in the best way: readable code, real tests, and no clever tricks that the next developer cannot follow.

Standards and structure

We follow PSR standards, use dependency management with Composer properly, and lean on static analysis to catch mistakes before they run. Code review is part of the process, not an optional extra, so what ships is code more than one person understands.

Tests where they matter

We write automated tests for the logic that would be expensive to get wrong: authentication, permissions, money, anything that changes data. That is what lets us change a working system later without holding our breath, and it is what a proper PHP developer delivers that a cheap one skips.

Deployment that is boring and reversible

Releases are automated so they are repeatable and can be rolled back in minutes. The first time a change misbehaves in production, boring deployment is the difference between a two-minute fix and a bad afternoon.

Get a fixed quote

Want this tested on your own systems?

Free 20-minute scoping call, a fixed price with no hourly surprises, and a free retest once you fix what we find.

Get a fixed quote

Security is where PHP reputations are made

This section exists because it is the whole point of choosing us for PHP. The classic PHP vulnerabilities are still the most common ones we find in real audits: SQL injection from unescaped input, cross-site scripting from unencoded output, insecure file uploads, and broken access control. None of them are exotic, and all of them are avoidable by writing the code correctly the first time.

Input in, output out

Every query is parameterised, so user input never becomes SQL. Every piece of output is encoded for the context it lands in, so a comment field cannot inject a script. File uploads are validated by content, and stored where they cannot be executed. These habits are second nature to developers who work beside an offensive team.

Access control that verifies ownership

An endpoint that returns a record checks that the record belongs to the person asking, not merely that they are logged in. That single discipline closes the IDOR bugs that quietly leak one user’s data to another, which is one of the most common serious findings in custom PHP applications.

The formal test, priced separately

When you need documented proof for a customer or an auditor, our offensive team can run a penetration test against the finished application and produce a report mapped to the OWASP Top 10, with an attestation letter. It is a separate, security-side engagement with its own quote, and the development work never obliges you to buy it.

Rescuing and modernising legacy PHP

A large part of our PHP work is not new code, it is old code that has become a liability. An application on PHP 5 or an unsupported 7.x release is running on software that no longer gets security fixes, and it is usually held together by a developer who left two years ago.

Assess before you touch

We start by mapping what the code actually does and where the risks are, both security holes and the parts only one person ever understood. You get a prioritised plan rather than a vague promise to rewrite everything.

Upgrade the PHP version safely

Moving to a current, supported PHP 8 release brings real performance and security gains, but it breaks code that relied on old behaviour. We do it in controlled steps with tests, so the application keeps running throughout instead of going dark for a risky big-bang cutover.

Refactor toward maintainable

Where the code is worth keeping, we refactor it toward structure and tests rather than rewriting from scratch, which is usually cheaper and less risky than a full rebuild. Where it genuinely cannot be saved, we say so honestly and plan a rebuild that reuses what works.

Tooling, environment and databases

The environment a PHP application runs in is part of the engineering, not a detail left to chance. We set up development, staging and production so they behave the same, which is how you avoid the classic “it worked on my machine” launch failure.

A consistent development environment

The best PHP development environment is the one your whole team can reproduce exactly, so we build with containerised setups that pin the PHP version, extensions and services. A new developer is productive on day one rather than losing a week to configuration, and the code behaves the same everywhere it runs.

Databases done right

Most PHP performance problems are really database problems. We design schemas that fit the queries you actually run, add the indexes that matter, and profile the slow pages instead of guessing. A query that takes two seconds under load is usually a missing index, not a reason to buy a bigger server.

Caching and scale

Where an application needs to go faster, we reach for the right cache before the bigger machine: query and object caching, HTTP caching, and a queue for the work that does not need to happen inside the request. That keeps hosting costs sane while the application grows.

PHP development pricing

PHP projects are scoped, not billed off a rate card, because the cost lives in the complexity of the logic and the state of any existing code, not a line count. We do not publish day-rates for project work. A real number comes from the assessment or discovery stage, quoted against fixed milestones so you know it before we begin.

Project type What’s included Typical timeline Pricing
Code audit and plan Review of an existing PHP codebase for security, quality and maintainability, with a prioritised action plan 1–2 weeks project-scoped, from a free quote
Custom feature or module A defined piece of functionality, plugin or API endpoint built cleanly, tested and documented 1–4 weeks project-scoped, from a free quote
New application A full build on Laravel or Symfony: back end, API, admin and integrations, launched to real users 6–16 weeks project-scoped, from a free quote
PHP 8 upgrade Moving a legacy codebase to a current, supported PHP version in controlled, tested steps 2–6 weeks project-scoped, from a free quote
Refactor and modernise Restructuring untested legacy code toward standards, tests and maintainability varies project-scoped, from a free quote
Ongoing development A steady stream of features, fixes and upgrades on a PHP application, on a rolling arrangement rolling project-scoped, from a free quote

Every project is fixed against agreed milestones and quoted after a free scoping call, under NDA, for clients throughout Europe, on-site or remote. Scope my project

What you get

Code you own and can read

You get the repository, the deployment setup and documentation, with code written to standards so another developer can maintain it. No proprietary layer, no lock-in, no dependence on a single person’s memory.

A handover that lasts

At launch you get architecture notes, an explanation of the integrations and deployment, and the maintenance points to watch. Your team can run it, or we can stay on under a clear arrangement.

FAQ

How much does PHP development cost?
It depends on scope: a single feature is a very different project from a new Laravel application or a legacy modernisation. You get a fixed, milestone-based quote after a free scoping call, rather than an open-ended meter.
Do you charge a PHP developer cost per hour?
For defined projects we quote a fixed price against milestones, which protects you from hourly surprises. Open-ended maintenance or an unpredictable backlog can be arranged on a rolling basis instead; we agree the model on the scoping call.
Which framework will you use, Laravel or Symfony?
Whichever fits the job. Laravel suits most new applications where speed of delivery matters; Symfony suits large, long-lived systems with demanding architecture. As a PHP development company we recommend based on your project, not our habit.
Can you upgrade my old PHP version?
Yes, and you should not delay. Running an end-of-life PHP version means no security fixes. We move you to a current, supported PHP 8 release in controlled, tested steps so the application keeps running throughout.
Can you fix code another developer left behind?
Yes. We start with an assessment that maps what the code does and where the security and maintenance risks are, then stabilise and refactor it, or plan a rebuild if it genuinely cannot be saved. You get an honest recommendation either way.
Is the PHP you write secure?
Security is a separate practice at SafetyBis, but your code is written by developers trained by penetration testers, so SQL injection, cross-site scripting and broken access control are designed out from the start. A formal penetration test and attestation is available as a separate engagement.
Do you follow PHP best practices?
Yes. We follow PSR standards, manage dependencies with Composer, use static analysis, write tests for the logic that matters and review code before it ships, so what you get is maintainable rather than clever.
Do you work under NDA across Europe?
Always, signed before any code or credentials are shared, and we work with clients throughout Europe, on-site or fully remote.

Related services

Who needs this

Companies that run on PHP and need it done properly: a new Laravel or Symfony application, a custom WordPress build, an urgent PHP 8 upgrade, or a rescue of legacy code that has become a security and maintenance liability.

why safetybis

Security you can prove

The same standard on every engagement, big or small.

Evidence, not opinions

Every finding ships with a reproduction and proof of concept — no vague "maybe vulnerable".

Humans over scanners

Certified engineers find the logic flaws and chained attacks automated tools walk straight past.

Fixed price, free retest

You know the cost up front, and verifying the fix is part of the deal — not a second invoice.

500+
assessments delivered
<30min
incident first response
12k+
infections removed
98%
fixed within one retest
$ safetybis quote --service "PHP Development"

Ready to lock this down?

Free scoping call, fixed price, free retest. Tell us what you're running and we'll take it from there — usually within one business day.

get in touch

Tell us what you're running

Scoping is free. We reply within one business day, and under 30 minutes for active incidents.