Question

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()

The question was asked during a job interview.

This question is from Object Advanced Features in section Objects and Databases in PHP of PHP

Answer 1

The correct option is (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.