Example 1 To learn about this, we need to go into the roots of this very concept. Live Demo test(); ?> Single Inheritance: In Single Inheritance one derived class inherits from only one base class. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview … PHP does support Multi-level inheritance. A Computer Science portal for geeks. means Child class class can’t any data of the inherit by more than one same parent class. PHP does not support multiple inheritance. Trait is the new concept introduced in PHP 5.4. PHP OOP does not allow multiple inheritance, it allow only multilevel inheritance. To allow this feature, you can use interfaces in PHP or you can use "Traits" in PHP instead of classes for implementing multiple inheritance in PHP. Multiple Inheritance in PHP : In Multiple Inheritance derived class may have two or more … PHP supports multileve inheritance. PHP doesn't support multiple inheritance. PHP does not allow multiple inheritance for classes but this is not true for interfaces, an interface may inherit from any number of interfaces as long as none of the interfaces it inherits from declares a method with the same name as those declared in child interface. PHP supports only single inheritance, where only one class can be derived from single parent class. By using it we can reuse the code. Multiple Inheritance in PHP In this tutorial i have shown how to implement multiple inheritance in php. Before PHP 5.4, PHP support single inheritance and multiple interface but trait is going to remove the limitation of not having multiple inheritances. We can simulate multiple inheritance by using interfaces . Version: 0.1 Type: Function Category: Other License: GNU General Public License Description: Here’s how to simulate a large subset of multiple inheritance functionality. [printfriendly] Introduction. Multiple inheritance in PHP Here is some clarification about PHP inheritance – there is a lot of bad information on the net. First i have created class as TGP nad then interface as … An example of multiple inheritance Many of the object oriented programming languages, like C#, Java and PHP do not support multiple inheritance. A Super Class | B Sub Class. But Parent class inherit the properties of prand parend class and grand child can inherit the properties of parent class. There is a very logical reason why PHP don’t support multiple inheritance. Therefore we are concerned about what "Traits" are. However, it supports heirarchical inheritance as follows: Example. Which remove the limitation of the multiple inheritance in PHP. Multiple inheritance actually suffers from the Diamond Problem. In simple word, subclass can not extend more than one super class. Heirarchical Inheritance. It is the simplest form of Inheritance. 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