3v4l.org

run code in 300+ PHP versions simultaneously
<?php function cmp($a, $b) { return ((int) $b - (int) $a); } $array = array(-1000, 500, 1000, 200, 30, 100000); usort($array, "cmp"); var_dump($array);
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 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(6) { [0]=> int(100000) [1]=> int(1000) [2]=> int(500) [3]=> int(200) [4]=> int(30) [5]=> int(-1000) }

preferences:
222.64 ms | 406 KiB | 395 Q