3v4l.org

run code in 300+ PHP versions simultaneously
<?php enum Foo { case 1; case 2; } var_dump(serialize(Foo::Bar));
Output for 8.4.10
Parse error: syntax error, unexpected integer "1" in /in/cDISV on line 4
Process exited with code 255.

preferences:
155.08 ms | 994 KiB | 7 Q