- Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.13
- done!
<?php
abstract class Base
{
protected function doit()
{
throw new \RuntimeException('Not implemented');
}
}
class Closed extends Base
{
protected function doit()
{
echo 'done!';
}
}
class Opener extends Base
{
public function execute(Closed $closed)
{
$closed->doit();
}
}
$closed = new Closed();
$opener = new Opener();
$opener->execute($closed);