<?php require_once 'classes/rectangle.php'; $r1 = new Rectangle(); $r1->set_width(5); $r1->set_height(4); echo 'R1<br>Area: ' . $r1->get_area() . '<br>Perimeter: ' . $r1->get_perimeter(); $r2 = new Rectangle(8, 6); echo '<br>R1<br>Area: ' . $r2->get_area() . '<br>Perimeter: ' . $r2->get_perimeter();