3v4l.org

run code in 300+ PHP versions simultaneously
<?php function cmp($a, $b) { $v = floatval($a) - floatval($b); return ($v == 0) ? 0 : (($v < 0) ? -1 : 1); } $tab = array('123:janek', '233:franek', '23:zenek', '33:pawel'); uasort($tab, 'cmp'); print_r($tab);
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [2] => 23:zenek [3] => 33:pawel [0] => 123:janek [1] => 233:franek )
preferences:
234.95 ms | 406 KiB | 316 Q