Answer
Common patterns: Singleton, Factory, Strategy, Decorator, Repository. These help structure scalable, maintainable code.
Quick Answer
Common PHP design patterns: Repository (abstracts data access), Service Layer (business logic separation), Factory (object creation), Strategy (swappable algorithms), Observer (event-driven behavior), Decorator (add behavior dynamically). Most PHP frameworks implement these. Repository and Service patterns are essential for clean, testable code in any mid-level PHP project.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ