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polymorphism.php
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/
polymorphism.php
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<?php
class Fruit{
public $name;
public $color;
public function __construct ($name, $color){
$this->name = $name;
$this->color = $color;
}
public function intro(){
echo "{$this->name} is a great fruit and its color is {$this->color}.";
}
}
class Cherry extends Fruit{
public $name;
public $color;
public $price;
public function __construct ($name, $color, $price) {
$this->name = $name;
$this->color = $color;
$this->price = $price;
}
public function intro(){
echo "{$this->name} is a delicious fruit, its price is {$this->price}, its look like {$this->color}.";
}
}
$strawberry = new Cherry ("Strawberry", "red", 35);
$strawberry->intro();
?>
</body>
</html>