Description: In the context of PHP, ‘implements’ is a keyword used to indicate that a concrete class is implementing an interface. Interfaces in PHP are contracts that define a set of methods that a class must implement, without providing the implementation of those methods. This allows developers to create more flexible and modular code, as classes can be interchangeable as long as they adhere to the same interface. The ‘implements’ keyword is used in the class declaration, followed by the name of the interface being implemented. This ensures that the class meets the specifications defined by the interface, thereby promoting adherence to object-oriented programming principles such as code reuse and separation of concerns. Additionally, the use of interfaces allows for the creation of more scalable and maintainable systems, as new implementations can be added without modifying existing code. In summary, ‘implements’ is fundamental to the structure and organization of code in PHP, facilitating the creation of robust and well-designed applications.
