Online PHP editor | output for CB5hg

<?php class Unicorn { public function approve() { return 'approve called'; } public function reject() { return 'reject called'; } } class Brexit extends Unicorn { protected $deal; public function __construct() { $this->deal = new Unicorn(); } } class Disaster extends Brexit { public function vote($bool) { return $bool === true ? $this->deal_approve() : $this->deal->reject(); } } $brexit = new Disaster(); echo $brexit->vote(false);