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PHP Bug Fix & Legacy Code
Old PHP site breaking after server upgrade? Errors after PHP 8 migration?
Old PHP code breaks silently when servers upgrade. I diagnose and fix deprecated functions, MySQL 8 compatibility, undefined variable errors, and legacy code that nobody wants to touch — but needs to work.
Common problems
✗Site broke after PHP 7 → 8 upgrade
✗MySQL deprecated function errors
✗"Undefined variable" or "Call to undefined function" errors
✗Old payment or shipping integration stopped working
✗Sessions or cookies behaving unexpectedly
✗Server-side logic giving wrong results
✗No documentation, original developer gone
What I do
✓PHP 7/8 migration and compatibility fixes
✓MySQL 8 query modernization
✓Legacy codebase audit and documentation
✓Integration repair and replacement
✓Performance profiling and query optimization
✓Code refactoring without breaking functionality
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