3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function doFoo(): ?int|null {} }
Output for 8.2.31 - 8.2.33, 8.3.0 - 8.3.33, 8.4.1 - 8.4.25, 8.5.0 - 8.5.10
Parse error: syntax error, unexpected token "|", expecting ";" or "{" in /in/kNPeM on line 4
Process exited with code 255.
preferences:
47.98 ms | 794 KiB | 3 Q