Online PHP editor | output for dRS6a

<?php # The blueprint for designing creatures for your game interface LivingBeing { public function dealDamage( $idamage); public function takeDamage( $idamage); } class Human implements LivingBeing { private $hp = 150; public function dealDamage( $damage) { } public function takeDamage( $damage) { } } class Elf implements LivingBeing { private $hp = 100; public function dealDamage($damage) { } public function takeDamage($damage) { } } class Dwarf implements LivingBeing { private $hp = 300; public function dealDamage($damage) { } public function takeDamage($damage) { } } # I am a junior dev, I am just going to write this code class Centuar { private $hp = 300; public function dealDamage($opponent) { $opponent->takeDamage(4); } public function takeDamage($damage) { } } class Orc { private $hp = 300; public function dealDamage($damage) { } } $Adam = new Human; $Lucas = new Elf; $Jack = new Dwarf; # Let's fight! $Gabrielle = new Centuar; $Guthakug = new Orc; $Gabrielle->dealDamage($Guthakug);