Online PHP editor | refs for CZlFT

<?php class Math { const pi = 3.14; } class CircleMath extends Math { public static function calculateArea($radius) { return parent::pi * pow($radius, 2); } } class Circle { private $radius; private $color; private $coordinates; public function __construct() { print func_get_arg(0); print func_get_arg(1); print func_get_arg(2); $this->radius = func_get_arg(0) || 1.0; $this->color = func_get_arg(1) || 'blue'; $this->coordinates = func_get_arg(2) || array('x' => 1, 'y' => 1); } public function calculateArea() { return CircleMath::calculateArea($this->radius); } public function get_radius() { return $this->radius; } public function get_color() { return $this->color; } public function get_coordinates() { return $this->coordinates; } } $className = 'Circle'; $circle = new $className(); print sprintf('The area of %s circle with radius %s and center positioned in (%s, %s) is: %s', $circle->get_color(), $circle->get_radius(), $circle->get_coordinates()['x'], $circle->get_coordinates()['y'], $circle->calculateArea()); ?>