3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo strnatcmp(1, 2) . PHP_EOL; // -1 echo strnatcmp(10, 2) . PHP_EOL; // 1
based on WOiPF
Output for 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 - 7.2.32, 7.3.0 - 7.3.20, 7.4.0 - 7.4.8, 8.0.0alpha1 - alpha2
-1 1