State in PHP
State is a behavioral design pattern that allows an object to change the behavior when its internal state changes.
The pattern extracts state-related behaviors into separate state classes and forces the original object to delegate the work to an instance of these classes, instead of acting on its own.
Usage of the pattern in PHP
Usage examples: The State pattern is occasionally used in PHP for turning large and cumbersome state machines based on
switch operators into objects.
Identification: State pattern can be recognized by methods that change their behavior depending on the objects’ state, controlled externally.