Object Advanced Features MCQ

Test your knowledge with important Object Advanced Features MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Object Advanced Features MCQs at Bissoy

• Which method is invoked when an undefined property is accessed?
  ক

  __get()

  খ

  __isset()

  গ

  __unset()

  ঘ

  __undefined()
• __clone() is run on the ___ object.
  ক

  original

  খ

  pseudo

  গ

  external

  ঘ

  copied
• Which keyword must be added before $first variable on the third line of the above question to make $second and $first as distinct objects in PHP 5?
  ক

  copy

  খ

  clone

  গ

  cut

  ঘ

  Can’t add any word to make them distinct
• Which method introduced in PHP 5, is invoked just before an object is a garbage collected?
  ক

  __collect()

  খ

  __garbage()

  গ

  __destruct()

  ঘ

  __destructor()
• Which one of the following method is invoked when an undefined method is called by client code?
  ক

  __get()

  খ

  __isset()

  গ

  __unset()

  ঘ

  __call()
• Which one of the following method is invoked when a value is assigned to an undefined property?
  ক

  __get()

  খ

  __set()

  গ

  __isset()

  ঘ

  __call()
• PHP provides built-in interceptor methods, which can intercept messages sent to undefined methods and properties. This is also known as _________
  ক

  overloading

  খ

  overriding

  গ

  overbending

  ঘ

  overbinding
• Which keyword is used to put a stop on inheritance?
  ক

  stop

  খ

  end

  গ

  break

  ঘ

  final
• Which one of the following keyword is used in conjunction with an Exception object?
  ক

  throws

  খ

  exception

  গ

  throw

  ঘ

  final
• Which one of the following methods in the exception class, is used to get a nested exception object?
  ক

  getPrevious()

  খ

  getCode()

  গ

  getFile()

  ঘ

  getLine()
• Which version of PHP introduced the concept called late static binding?
  ক

  PHP 4

  খ

  PHP 5

  গ

  PHP 5.1

  ঘ

  PHP 5.3
• Which one of the following keyword is used to implement an interface?
  ক

  interface

  খ

  get

  গ

  inherit

  ঘ

  implements
• At least how many abstract methods must an abstract class contain?
  ক

  None

  খ

  One

  গ

  Two

  ঘ

  Five
• Which one of the following is the correct abstract method?
  ক

  public function write()

  খ

  abstract function write()

  গ

  abstract public write();

  ঘ

  abstract public function write();
• Which one of the following keywords are used to define an abstract class?
  ক

  extends

  খ

  implements

  গ

  abstract

  ঘ

  new
• Which one of the following class can not be instantiated?
  ক

  inherited class

  খ

  abstract class

  গ

  constant class

  ঘ

  every class
• What will happen if you try to set a value to a constant once it has been declared?
  ক

  The value of the variable will change

  খ

  The value of the variable will not change

  গ

  Parse Error

  ঘ

  Nothing
• Which one of the following is a constant variable?
  ক

  const $name

  খ

  const $NAME

  গ

  constant NAME

  ঘ

  const NAME
• Which keyword is used to declare a constant property?
  ক

  const

  খ

  con

  গ

  constant

  ঘ

  _constant
• Which version of PHP allows you to define constant properties within a class?
  ক

  PHP 4

  খ

  PHP 4.1

  গ

  PHP 4.3

  ঘ

  PHP 5
• Which one of the following variable cannot be used inside a static method?
  ক

  $this

  খ

  $get

  গ

  $set

  ঘ

  $date
• In which of the following circumstance should you use a static reference to a non static method?
  ক

  Making a method call using parent

  খ

  Making a method call using child

  গ

  Making an object call using parent

  ঘ

  Making an object call using child
• Which keyword is used to access a static method or property from within the same class(rather than from child)?
  ক

  static

  খ

  strat
• Which version of PHP introduced the static keyword?
  ক

  PHP 4

  খ

  PHP 5

  গ

  PHP 5.2

  ঘ

  PHP 5.3