How to use Interface in php with example 2022

How to use Interface in php with example 2021

How to use Interface in php with example

Interface in PHP: The interface is an important element in PHP which is called reference type. It is the blueprint of the class. It is a collection of abstract methods/functions. It is declared with the interface keyword. 

PHP Language

We can not create an instance(object) of an interface. We can not define a function inside the interface only can be declared, so it is the responsibility of the derived class to implement the method/function of the interface. 

Python Language

How to use Interface in php with example

<?php interface Geometry {  public function rec_area();  public function tri_area(); } class Derived implements Geometry {  public function rec_area()    {   $h=20;   $w=20;   echo "Area of Rectangle:".($h*$w)."<br>";   }   public function tri_area()    {   $b=25;   $h=28;   echo "Area of Triangle:".(0.5*$b*$h)."<br>";   } } $obj = new Derived(); $obj->rec_area(); $obj->tri_area(); ?> *****OUTPUT***** Area of Rectangle:600 Area of Triangle:350