3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function doFoo(): ?int|null {} }
Output for 8.2.31 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Parse error: syntax error, unexpected token "|", expecting ";" or "{" in /in/kNPeM on line 4
Process exited with code 255.
preferences:
32.45 ms | 1136 KiB | 6 Q