Which one of the following method is invoked when an undefined method is called by client code?

A. __get()

B. __isset()

C. __unset()

D. __call()

Answer: Option D

Solution(By Examveda Team)

The __call() method is probably the most useful of all the interceptor methods. The __call() method can be useful for delegation. Delegation is the mechanism by which one object passes method invocations on to a second.