<?php
class PersegiPanjang {
public $panjang;
public $lebar;
public function luas() {
return $this->panjang * $this->lebar;
}
}
class Balok extends PersegiPanjang {
public $tinggi;
public function volume() {
return $this->panjang * $this->lebar * $this->tinggi;
}
}
$balok = new Balok();
$balok->panjang = 10;
$balok->lebar = 5;
$balok->tinggi = 3;
echo "Persegi Panjang dan Balok\n";
echo "Panjang = $balok->panjang\n";
echo "Lebar = $balok->lebar\n";
echo "Tinggi = $balok->tinggi\n";
echo "Luas Persegi panjang = {$balok->luas()}\n";
echo "Volume Balok = {$balok->volume()} \n";
