Using the State Design Pattern | PHP Code Examples in 2023
Using the State Pattern in PHP The state pattern is a behavioral design pattern that allows an object to alter its behavior when its internal state changes. It appears as if the object changed its class. The first statement makes sense, given that the state diagram is based on the idea of states and corresponding behavioral changes when the state machine transitions between various states. The second statement is more apparent from a client’s perspective because when the object changes its behavior, it appears that it is an instance of some other class. The client doesn’t see all the state transitions that happen within, thus creating a perception that the object changes its class in the runtime. Article Highlights Defines classes for all the states, encapsulating their behaviors. The client delegates actions to the state objects. Benefit - Creates a flexible and maintainable state machine. Cons - Adds as many…
