3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo sqrt(-10);
Output for 8.5.0 - 8.5.3
Warning: unexpected NAN value was coerced to string in /in/QT2jC on line 3 NAN
Output for 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
NAN
preferences:
33.25 ms | 703 KiB | 4 Q