3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public function foo(): self { return $this; } } class B extends A { public function foo(): self { return $this; } } (new B())->foo();

This is an error 500

Value for `_results` contains invalid data `array`


preferences:
158.29 ms | 2196 KiB | 10 Q