Online PHP editor | refs for dsdtr

<?php class Doge { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } public function equalsWithSameType(self $other) { return ($other->name === $this->name); } public function equalsWithSubType(DogeCoin $sub) { return ($sub->name === $this->name); } public function equalsWithRandomType(SomethingElseCompletely $whatever_man) { return ($whatever_man->name === $this->name); } } class DogeCoin extends Doge { private $name; } class SomethingElseCompletely { private $name; public function __construct($name) { $this->name = $name; } } $first_doge = new Doge('a'); $second_doge = new Doge('a'); $doge_coin = new DogeCoin('a'); $something_else_completely = new SomethingElseCompletely('a'); var_dump($first_doge->equalsWithSameType($second_doge)); var_dump($first_doge->equalsWithSubType($doge_coin)); var_dump($first_doge->equalsWithRandomType($something_else_completely));