What is duck typing

Duck typing is a concept in programming, particularly in dynamically typed languages like Python and Ruby, that determines an object's suitability for use in a particular context by the methods and properties the object possesses rather than the object's actual type. The famous saying, "If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck" encapsulates the essence of duck typing.


        <?php
        class Duck {
            public function quack() {
                return "Quack!";
            }
        }

        class Dog {
            public function bark() {
                return "Woof!";
            }
        }

        function makeSound($animal) {
            if (method_exists($animal, 'quack')) {
                return $animal->quack();
            } else {
                return "This animal cannot quack.";
            }
        }

        $duck = new Duck();
        echo makeSound($duck); // Outputs: "Quack!"

        $dog = new Dog();
        echo makeSound($dog); // Outputs: "This animal cannot quack."
        ?>

What is duck typing

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What is duck typing

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