Online PHP editor | perf for Tnb34

<?php abstract class BaseLevel { public string $name { set => strtolower($value); } abstract public function getName(): string; } class FirstLevel extends BaseLevel { public function getName(): string { return ucfirst($this->name); } } class SecondLevel extends FirstLevel { public function getName(): string { return strtoupper($this->name); } } $firstLevel = new FirstLevel(); $firstLevel->name = 'John'; echo $firstLevel->name; echo $firstLevel->getName(); $secondLevel = new SecondLevel(); # $secondLevel->name = 'Jane'; echo $secondLevel->name; echo $secondLevel->getName();

Version	System time (s)	User time (s)	Memory (MiB)
8.4.15	0.015	0.010	19.69
8.3.5	0.010	0.007	18.55