3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(glob('/sys/*'));
Output for 7.4.26 - 7.4.32, 8.0.14 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
bool(false)
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.25, 7.4.33, 8.0.0 - 8.0.13
array(11) { [0]=> string(10) "/sys/block" [1]=> string(8) "/sys/bus" [2]=> string(10) "/sys/class" [3]=> string(8) "/sys/dev" [4]=> string(12) "/sys/devices" [5]=> string(13) "/sys/firmware" [6]=> string(7) "/sys/fs" [7]=> string(15) "/sys/hypervisor" [8]=> string(11) "/sys/kernel" [9]=> string(11) "/sys/module" [10]=> string(10) "/sys/power" }

preferences:
321.81 ms | 406 KiB | 468 Q