Q. Which of the following statements is/are true about Constructors in PHP?

i) PHP 4 introduced class constructors.
ii) Constructors can accept parameters.
iii) Constructors can call class methods or other functions.
iv) Class constructors can call on other constructors.

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Q. PHP recognizes constructors by the name_________

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Q. Which version of PHP introduced the instanceof keyword?

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Q. Which one of the following functions is used to determine whether a class exists?

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Q. Which one of the following functions is used to determine object type?

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Q. Which one of the following keyword is used to inherit our subclass into a superclass?

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Q. Which keyword is used to refer to properties or methods within the class itself?

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Q. Which keyword allows class members (methods and properties) to be used without needing to instantiate a new instance of the class?

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Q. Which of the following advanced OOP features is/are not supported by PHP?

i) Method overloading
ii) Multiple Inheritance
iii) Namespaces
iv) Object Cloning

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Q. Which version of PHP introduced the advanced concepts of OOP?

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Q. Which one of the following is the right way to clone an object?

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Q. The class from which the child class inherits is called..

i) Child class
ii) Parent class
iii) Super class
iv) Base class

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Q. Which of the following is/are true for an abstract class?

i) A class is declared abstract by prefacing the definition with the word abstract.
ii) A class is declare abstract by using the keyword implements.
iii) It is a class that really isn’t supposed to ever be instantiated but instead serves as a base class.
iv) Attempting to instantiate an abstract class results in an error.

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Q. If one intends to create a model that will be assumed by a number of closely related objects, which class must be used?

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Q. If your object must inherit behavior from a number of sources you must use a/an

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Q. Which method is used to tweak an object’s cloning behavior?

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Q. Which feature allows us to call more than one method or function of the class in single instruction?

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Q. Which magic method is used to implement overloading in PHP?

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