Paste_Image.png

Paste_Image.png

Paste_Image.png

<?php

interface ICanEat
{
    public function eat($food);
}

class Human implements ICanEat
{

    public function eat($food)
    {
        echo "Human eating " . $food . "<br/>";
    }
}

class Animal implements ICanEat
{

    public function eat($food)
    {
        echo "Animal eating " . $food . "<br/>";
    }
}

$obj = new Human();
$obj->eat("apple");//Human eating apple

$monkey = new Animal();
$monkey->eat("Banana");//Animal eating Banana

var_dump($obj instanceof Human);//boolean true

function checkEat($obj)
{
    if ($obj instanceof ICanEat) {
        $obj->eat('food');
    } else {
        echo "The obj can't eat" . "<br/>";
    }
}

checkEat($monkey);//Animal eating food


interface iCanPee extends ICanEat
{
    public function pee();
}

class Human1 implements iCanPee
{


    public function eat($food)
    {
        echo "Human1 eat " . $food . "<br/>";
    }

    public function pee()
    {
        echo "Human1 pee" . "<br/>";
    }
}


?>

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