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Object-Oriented Programming in PHP

Interfaces vs. Abstract Classes

Explore the distinctions between interfaces and abstract classes in PHP, understand their roles in abstraction, and learn how to implement their methods in child classes to enforce OOP design.

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Previously, we learned that abstract classes and interfaces are similar because both provide abstract methods that can only be implemented in the child classes. However, they still differ in the following ways:

  • Interfaces can include abstract methods and constants, but they
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