3v4l.org

run code in 500+ PHP versions simultaneously
<?php // different lengths = shorter wins consistently var_dump([0, 1] <=> [0, 1, 2]); var_dump([0, 1, 2] <=> [0, 1]); echo PHP_EOL; // same length + missing key = inconsistent var_dump([0 => 1] <=> [1 => 1]); var_dump([1 => 1] <=> [0 => 1]);
Output for 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 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
int(-1) int(1) int(1) int(1)
preferences:
31.13 ms | 1137 KiB | 7 Q