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PHP Developer for New and Legacy Systems - Delhi NCR & India

Arun Tyagi is a freelance PHP developer based in Noida, India, with 10+ years of production PHP experience across Laravel, Core PHP, Symfony, and CodeIgniter codebases. Specialising in REST API development, legacy PHP migration to Laravel 11/12, and secure backend architecture for startups and enterprises across India, UAE, and the US

⚡ Reply within 4 hours on weekdays · From ₹40,000+ · Based in Noida, India

A lot of profitable software in India still runs on PHP written ten years ago — core PHP, old CodeIgniter, early Laravel. It works, until the host retires the PHP version or the one developer who understood it leaves.

I'm Arun Tyagi, a freelance PHP developer in Sector 58, Noida, working with businesses across Delhi NCR and remotely across India. This page covers both kinds of PHP work I do: keeping an existing PHP system safe and upgrading it, and building new PHP applications properly.

Signs your PHP system needs attention

  • It runs on PHP 7.x or older, and your host has announced the end of support.
  • Deprecated warnings fill the logs, or pages break after a server update.
  • SQL is mixed into templates, and nobody wants to touch certain files.
  • There is no staging server and no backup you have actually tested restoring.
  • Adding a small feature takes weeks because every change breaks something else.

Upgrade, refactor or rebuild?

OptionWhen it fitsCost and risk
Careful upgradeThe code is reasonably organised and mainly needs PHP 8 compatibility and security fixes.Lowest cost; tested on a staging copy before production switches.
Module-by-module move to LaravelThe business logic is valuable but the code is hard to change.Medium cost; the old system keeps running while the riskiest modules move first.
RebuildThe system is small, or so fragile that patching costs more than rewriting.Highest upfront cost; cleanest result.

I audit first and show you the options with costs. Often a careful upgrade plus a module-by-module rebuild is cheapest in the long run.

What a first audit covers

  • PHP and framework versions, and every dependency that blocks an upgrade.
  • Security: file uploads, admin access, SQL injection risks and exposed config files.
  • Hosting, deployment and backups — including whether a restore actually works.
  • A written list of risks in priority order, with a quote for each fix.

Common PHP jobs

  • Payment gateway swap or a new integration with a CRM, ERP or courier.
  • A new report or admin screen on an existing system.
  • Performance fixes for slow pages and heavy queries.
  • Moving off shared hosting to a server with proper deployments.
  • New custom applications and APIs — almost always in Laravel, because it gives your next developer a recognisable structure.

PHP, Laravel or WordPress?

OptionUse it when
Core PHPTiny scripts or maintaining an existing system.
LaravelCustom apps, SaaS, APIs — anything that will grow.
WordPressContent sites and simple stores — see WordPress development.
CodeIgniter / YiiExisting projects already built on them; I rarely start new ones there.

PHP developer in Delhi NCR

Across Delhi, Noida, Gurugram and Faridabad, the PHP work that reaches me follows a familiar pattern: distributors and manufacturers running a core-PHP order system from years ago, schools with a CodeIgniter portal nobody dares update, and agencies that need a senior PHP developer for one client project.

Most of this work runs remotely after one in-person meeting. Meetings in Noida and East Delhi are easy to arrange; for Noida businesses there is also a PHP developer in Noida page.

What the first month looks like

  1. Week 1: read the code or brief, list risks, agree on scope in writing.
  2. Week 2: set up staging, version control and a repeatable deployment.
  3. Weeks 3–4: first working module or fixes on staging for you to test.

Pricing

  • Bug fixes and small features: Rs.5,000–40,000 each.
  • Legacy audit and upgrade plan: Rs.15,000–35,000.
  • Custom PHP or Laravel application: Rs.60,000–2,50,000+.
  • Monthly care for an existing system: from Rs.8,000 — see maintenance and support.

Send your repository link, or a description if there is no code yet, on WhatsApp or book a free call. I will tell you honestly whether your PHP system should be repaired, upgraded or rebuilt.

Ready to start your project?

Book a free discovery call or send your brief — I usually reply within 4 business hours. Projects typically from ₹40,000+.

Frequently asked questions

Can you work on core PHP or CodeIgniter code?

Yes, for maintenance and upgrades. For new modules I usually suggest Laravel so the next developer has a familiar structure.

Our host is removing PHP 7.4. What do we do?

Start with an audit to find code that breaks on PHP 8, fix it on a staging copy, then switch production.

Should we rewrite everything in Laravel?

Rarely all at once. Moving the riskiest modules first keeps the business running while the system improves.

Can you meet in Delhi NCR?

Yes. I am in Sector 58, Noida, so meetings in Noida, East Delhi and nearby areas are easy to arrange; most work then runs remotely.

Do you offer monthly support for old systems?

Yes, from Rs.8,000 a month depending on hours and response time.

From my blog

Where I work with clients

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