3v4l.org

run code in 500+ PHP versions simultaneously
<?php print_r(NAN);
Output for 8.5.0 - 8.5.10
Warning: unexpected NAN value was coerced to string in /in/LjTUS on line 3 NAN
Output for 8.2.31 - 8.2.33, 8.3.0 - 8.3.33, 8.4.1 - 8.4.25
NAN
preferences:
48.43 ms | 785 KiB | 4 Q