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PHP MCQs

Without introducing a non-class member variable, which of the following can be used to keep an eye on the existing number of objects of a given class?

Adding a member variable that gets incremented in the default constructor and decremented in the destructor.

Adding a local variable that gets incremented in each constructor and decremented in the destructor.

Add a static member variable that gets incremented in each constructor and decremented in the destructor.

This cannot be accomplished since the creation of objects is being done dynamically via "new."

Answer

Correct Answer: Add a static member variable that gets incremented in each constructor and decremented in the destructor.

Explanation:

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