Multilevel and Multiple Inheritance in PHP

Multilevel and Multiple Inheritance in PHP

Posted 9 years ago By Ajay Gupta 124003

Multilevel and Multiple Inheritance in PHP :

PHP OOP does not allow multiple inheritance, it allow only multilevel inheritance.

In simple word, subclass can not extend more than one super class.
But PHP allow hierarchical inheritance, Hierarchical inheritance means child can get property of their parent and parent can get property of grand parent, so in this way child can get also some property of their grand parent.

Best example of multiple inheritance in PHP

class demo
{
//Your class body
}
class demo1
{
//Your class body
}
class demo3 extends demo1 demo2
{
//your class body
}

class demo{//Your class body}class demo1{//Your class body}class demo3 extends demo1 demo2{//your class body}

Above code will not work in php because php does not allow multiple inheritance.

Best example of multilevel inheritance in PHP

class grandParent
{
//Body of grand parent class
}
class parent extends grandParent
{
//Body Of parent class
}
class child extends parent
{
//Body of child class
}

class grandParent{//Body of grand parent class}class parent extends grandParent{//Body Of parent class}class child extends parent{//Body of child class}

Above example is so clear to understand, child class is extending parent class and parent class is extending grand parent.This was a very basic example to understand the concept of multilevel inheritance in php oops.

Note : only Interfaces support multiple inheritance

Tags :

PHP OOP Object Oriented Programming

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