Abstraction in OOP — a practical guide to abstraction OOP with clear examples you can reuse in real projects.
OOP Tutorial Series (25/65). Prefer one article? Read the complete OOP tutorial.
Short description
Abstraction focuses on “what” an object does. Abstract classes and interfaces help define clean contracts.
Abstraction idea
Caller: $gateway->charge(100)
Hidden: HTTP, signatures, retries, logging