In Object oriented programming we can define visibility as public, protected, private. So Public variables can be used inside or outside of the class. Whereas Protected and Private variables cannot…
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What is Constants In PHP In Object Oriented Programming we can define constants. Mainly when you want to use some variables with some values and you want to make sure…
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What is Data Encapsulation Data Encapsulation also known as Data Hiding is a very vital object oriented programming concept. In this mechanism user can perform restricted set of operations of…
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What is Inheritance In Object Oriented Programming inheritance is a concept of extending a class. So if you have a base class let’s say “Vehicle Class”. This class might have…
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What is Overriding Function overriding is a concept of Object Oriented Programming where we crate function with same name in parent and child class. And PHP calls the function from…
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What is Final Keyword The concept of Final keyword is important as we can restrict the use of class using this keyword. In Object Oriented Programming when you want to…
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What is Abstract Class In Object Oriented Programming Abstract keyword is very useful. If we want to create a class that cannot be instantiated but can be extended then we…