Modernization

Legacy PHP to Laravel Upgrade

Modernizing an outdated core retail database, patching framework versions, and refactoring monolith code to secure operations.

Client Context

The client runs an enterprise service with a system built over 8 years ago. The codebase consisted of custom procedural scripts, direct database linkages, and deprecated library dependencies.

Existing Environment

The production server operated on an outdated PHP 5.6 configuration without database firewalls, running custom SQL queries scattered directly within HTML templates.

Business Problem

Deprecated server modules caused frequent security vulnerabilities and slow database response times. Additionally, the lack of clean separation of concerns made adding new features slow and risky.

The Solution

Sigmatic Soft modernized the application code structure. We refactored raw queries into a clean Laravel MVC architecture, secured database credentials, and migrated the production server to a secure containerized environment.

System Architecture

Spaghetti Code scripts & raw SQL
Fragile PHP 5.6 codebases with vulnerability exposures
Laravel Refactoring MVC (Upgrade)
Eloquent ORM validation, PHP 8.2 upgrade, & unit testing
Secure Cloud Hosting (VPC)
Containerized Docker instances with database firewall blocks

Implementation

We migrated custom SQL statements to Eloquent models and query builders. We wrote automated unit test suites to confirm billing formulas remained consistent. Finally, we deployed the modernized stack using Docker container configurations.

Operational Outcome

Page loading speed increased by 60% and CPU utilization dropped. Database queries are fully parameterized, eliminating SQL injection risks, and code maintainability is greatly simplified.

Lessons Learned

Ignoring technical debt makes future scaling impossible. Standardizing codebases onto modern MVC frameworks is the single best investment to secure long-term operational growth.

Project Details
  • Category: Legacy Modernization
  • Timeline: 14 Weeks
  • Stack: PHP / Laravel / Docker / MySQL / Git
  • Status: Live in Production
Capabilities Engineered
  • • Laravel MVC code refactoring
  • • PostgreSQL/MySQL schema upgrade
  • • Github Actions deployment CI/CD
  • • Containerized Docker hosting
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