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:A
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()
Explanation: 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.