3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Everything you enter here will be executed by our servers. Try it! $arr = array(10,8,13,8,5,10,10,12); $occurrences = array_count_values($arr); usort($arr, function ($a, $b) use ($occurrences) { // if the occurrence is equal (== 0), return value difference instead return ($occurrences[$a] - $occurrences[$b]) ?: ($a - $b); }); print_r($arr);
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
Array ( [0] => 5 [1] => 12 [2] => 13 [3] => 8 [4] => 8 [5] => 10 [6] => 10 [7] => 10 )
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/FsDTG on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION in /in/FsDTG on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/FsDTG on line 7
Process exited with code 255.