Introduction to SOLID
summary
Covers concrete PHP refactorings and trade-offs: controller logic moved into a UserRegistration service then split into storage and welcome-email classes, a duck example showing strategy and decorator patterns not inheritance, and a real OAuth2 token decorator that caches tokens for 48 hours that worked as a storage+API chain. Shows CakePHP filter refactor to a SearchParameters interface, a DatePickerOptions value object, and notes DI containers (Pimple, PHPMailer etc) trade-offs — more code and wiring for easier-to-reason-about, extensible code.
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chapters (7)
- 0:00Start
- 2:58READING VS WRITING
- 9:35OPEN FOR EXTENSION
- 16:34SANDWICHES
- 23:08THE OBSERVER PATTERN
- 27:46DESIGN BY CONTRACT
- 56:33OPTIMIZE FOR READING
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