3v4l.org

run code in 300+ PHP versions simultaneously
<?php phpversion() >= "5.6.16" or die(); echo INF / pow(2.,64.),"\n"; echo fmod(INF, pow(2.,64.));
Output for 5.6.8 - 5.6.9, 5.6.16 - 5.6.21, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.13, 7.3.0 - 7.3.1
INF NAN
Output for 5.5.24 - 5.5.35, 5.6.10 - 5.6.15

preferences:
80.59 ms | 401 KiB | 61 Q