3v4l.org

run code in 300+ PHP versions simultaneously
<?php { { { { { { { function foo(): void {} } } class Bar {} } } function baz(): void { { { { { echo "foo!"; } } } } } } } { { { baz(); } } } }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
foo!

preferences:
75.13 ms | 1230 KiB | 4 Q