[Solved] What does the instanceof operator do in PHP? — Ans: Checks if an object is an instance of a specific class or its subclass | PHP

PHP - Inheritance and Polymorphism

What does the instanceof operator do in PHP?

ACreates a new instance of a class

BChecks if an object is an instance of a specific class or its subclass

CDeletes an object from memory

DConverts an object to a string

Step-by-Step Solution

Solution:

Step 1: Understand the purpose of instanceof
The instanceof operator is used to check if a variable is an object of a certain class or subclass.
Step 2: Differentiate from other operations
It does not create, delete, or convert objects; it only checks their type.
Final Answer:
Checks if an object is an instance of a specific class or its subclass -> Option B
Quick Check:
instanceof checks object type [OK]

Quick Trick: Remember: instanceof checks object type, not creation or deletion [OK]

Common Mistakes:

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What does the instanceof operator do in PHP?