PHP Version Upgrade Services
Upgrade Version: PHP5 -> PHP7 -> PHP8.0.x -> PHP8.1.x -> PHP8.2.x -> PHP8.3.x -> PHP8.4.x
Our Approach:
- Syntax & Dependency Audit: Identify removed functions, extension support changes, and composer constraints
- Error & Deprecation Handling: Upgrade error reporting, convert notices to exceptions, adopt strict typing
- Performance Profiling: Leverage JIT improvements, opcache tuning, and memory optimizations
- CI/CD Integration: Automate PHPUnit, PHPStan, and static analysis checks in build pipelines
| Phase | Activities | Deliverables |
|---|---|---|
| 1. Code Audit | • Static analysis (PHPStan) for deprecated functions and syntax changes • Composer dependency checks | • Audit report with error/warning list |
| 2. Upgrade & Refactor | • Update composer.json engines field• Refactor code (e.g., replace mysql_* with PDO)• Add strict types where feasible | • Refactored codebase • Updated composer.lock |
| 3. Testing | • PHPUnit test-suite run under each PHP version via CI matrix • Capture deprecation notices as failures | • CI build logs • Test coverage report |
| 4. Performance Profiling | • Benchmark key endpoints with Blackfire or Xdebug profiler • Tune OPcache settings | • Profiling report • Recommended php.ini tweaks |
| 5. Deployment | • Rollout via container images tagged per PHP version • Monitor error logs for 48 hrs | • Dockerfile versions • Monitoring dashboard |