It defines final public function __set() and final public function __unset() to prevent adding and mutating undefined properties. The Type class recognizes scalars and nulls as immutable. All other ...

An Immutable object is an object that can not be changed once it is created. Using Immutable object makes it unnecessary to clone an object for precaution in order to avoid unintentional object ...

Immutable objects are highly desirable. Because an immutable object’s state cannot be changed, they are particularly useful in concurrent environments. Immutable options can simplify code and reduce ...