3v4l.org

run code in 500+ PHP versions simultaneously
<?php function demo(): void { return; } var_dump( demo() );
Output for 8.1.32 - 8.1.34, 8.2.0 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.23, 8.5.0 - 8.5.8
NULL
preferences:
69.21 ms | 872 KiB | 4 Q