OOP in PHP 8 July 2016 · 1 min read

Differences between abstract class and interface in PHP

In abstract classes this is not necessary that every method should be abstract. But in interface every method is abstract. Multiple and multilevel both type of inheritance is possible in interface. But single and multilevel inheritance is possible in abstract classes. Method…

Chetan S. Patil Software Engineer at Genpact

In abstract classes this is not necessary that every method should be abstract. But in interface every method is abstract.
Multiple and multilevel both type of inheritance is possible in interface. But single and multilevel inheritance is possible in abstract classes.
Method of php interface must be public only. Method in abstract class in php could be public or protected both.
In abstract class you can define as well as declare methods. But in interface you can only defined your methods.

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Chetan S. Patil

Software Engineer in Pune — PHP, Symfony and SQL Server behind financial operations and payment systems.

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