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- <!doctype html>
- <html lang="en">
- <head>
- <meta charset="UTF-8">
- <meta name="viewport"
- content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
- <meta http-equiv="X-UA-Compatible" content="ie=edge">
- <title>Document</title>
- </head>
- <body>
- <h1 style="text-align: center;color: maroon;font-weight: bold; font-family: 'Mongolian Baiti'"> Object Oriented PHP (Multi Level Inheritence)</h1>
- <br>
- <?php
- class Father
- {
- public $a;
- public $b;
- public function getV($x, $y)
- {
- $this->a = $x;
- $this->b = $y;
- }
- }
- class Son extends Father
- {
- public $c=50;
- public $sum;
- public function add()
- {
- return $this->sum =$this->a +$this->b+ $this->c;
- }
- }
- class Gson extends Son
- {
- public function display()
- {
- echo "Value Of A is : $this->a <br>";
- echo "Value Of B is : $this->b <br>";
- echo "Value Of C is : $this->c <br>";
- echo "Value Of Total Sum is :". $this->add() ;
- }
- }
- $obj =new Gson;
- $obj->getV(30,20);
- $obj->add();
- $obj->display();
- ?>
- </body>
- </html>
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