PHP Abstract Explained: Classes & Methods

In PHP, “abstract” is a keyword used to declare abstract classes or abstract methods. Abstract classes cannot be instantiated and can only be inherited. Abstract methods are declared in abstract classes and do not contain a specific implementation, but rather, they are implemented by subclasses. Abstract classes and methods are mainly used to define common behaviors and methods, allowing subclasses to implement specific functionalities. Using the “abstract” keyword to declare abstract classes or methods can make the code more flexible and extensible.