3v4l.org

run code in 300+ PHP versions simultaneously
<?php $test = array(5.8,5.1,5.2,5.4,5.3,5.5,4.2,4.05,6.9); function sortByOrder($a, $b) { return ceil($a - $b); } usort($test, 'sortByOrder'); print_r($test);
Output for 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 ( [0] => 4.05 [1] => 5.1 [2] => 4.2 [3] => 5.2 [4] => 5.3 [5] => 5.4 [6] => 5.5 [7] => 5.8 [8] => 6.9 )
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 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Array ( [0] => 4.05 [1] => 4.2 [2] => 5.1 [3] => 5.2 [4] => 5.3 [5] => 5.4 [6] => 5.5 [7] => 5.8 [8] => 6.9 )
preferences:
260.44 ms | 405 KiB | 459 Q