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  Should we use Abstract class or Interface?

When we write programs, we may often get into a situation where we don't know whether we should use Abstract class or Interface when we want to define an abstract object. These two are very similar and they are interchangeable in many cases. On Stackoverflow, this question is asked lots of times and it's related to many programming languages. Also in the official documentation of PHP regarding the Abstract class and Interface, people are arguing about this. To understand this question, their differences and use scenarios need to be understood first.Abstract class and Interface structureFor Abs...

21,913 5       COMPARISON OOP DIFFERENCE INTERFACE ABSTRACT CLASS