PHP Migration · London
PHP Migration in London
PHP version migrations for London organisations, where the difficulty is proportional to how long the warnings were ignored. Behaviour deprecated in one version becomes an error in a later one, so an application that has been logging notices for years is holding a list of the exact things that will stop working.
Why this comes up
The problem
The error log has been full of deprecation notices for three years, and the upgrade now fails on all of them at once.
What you get
What we deliver
- Deprecation notices collected from the current version and treated as the work list
- Automated tooling applied to the mechanical changes, with the rest scoped
- Extensions checked, since some are removed and others need replacing
- Behavioural changes identified where the same code produces different results
- One version at a time, with the application working at each step
- Deprecations treated as errors afterwards, so the list cannot rebuild
Want this scoped for your business in London?
Thirty minutes, no charge, no sales script. You leave with a written summary of what php migration would actually involve — whether or not you use us.
Working in London
London
London clients usually come to us because they want senior people actually on their project rather than a large agency's B team, and because Midlands rates buy considerably more delivery per pound.
Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates.
Sectors we work with in London
- Financial Services
- Professional Services
- Technology
- Media
- Hospitality
- Retail
What we work with
Technologies and platforms
- PHP
- Rector
- PHPStan
- Composer
Who we work with
Industries we serve
- Retail
- Media companies
- Professional services
- Public sector
- SaaS businesses
Why us
Why London businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in London
Looking for the full picture? See our PHP Migration services, everything we do in London or browse everything we do.
PHP Migration in London — common questions
- Why do deprecations matter so much?
- Because they are advance notice with a deadline. Each one is behaviour that will be removed, and an application logging hundreds of them has been told exactly what will break — which makes them the most useful planning document available.
- Can tooling do the work?
- A substantial share of it. Automated refactoring handles the mechanical transformations reliably, which leaves the genuinely difficult cases — behavioural changes and abandoned extensions — as the part needing judgement rather than effort.
- What is easy to miss?
- Changes where code still runs and does something different. Sorting behaviour, type coercion and comparison semantics have all changed across versions, and these produce wrong results rather than errors — which testing catches only if it covers them.
- How do we avoid repeating this?
- Fail the build on deprecations once you are current. It converts a slow accumulation into an immediate small task, and the next version upgrade becomes routine rather than a project to recover a supported position.
- Do you work with businesses across Greater London?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout London, including London and the surrounding Greater London area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of London businesses do you usually work with?
- Clients here are usually replacing an agency, and want senior people on the work at rates that are not Central London rates. Beyond that we work across Financial Services, Professional Services, Technology, Media, Hospitality and Retail.
- Do you cover the areas around London?
- Yes — we work throughout London, including Reading, Milton Keynes, Cambridge, Brighton. London is an urban area of roughly 9,000,000+, and we take on work across the wider Greater London region rather than the city boundary alone.
Talk to us about PHP Migration in London
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise