Anatoliy Dovgun

SOLID in WordPress Architecture — Part 2: Open/Closed Principle

1 Mar 2026· Originally published on Medium ·OOP & SOLID

In short

  • Plugins break from change, not from complexity.
  • Interfaces instead of `if` chains: each payment gateway lives in its own class.
  • The system grows through extension, not through new branches of code.
Read the full article on Medium →
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