Online PHP editor | refs for 9uqO8

<?php function uasort_key(&$arr, $func) { return uksort($arr, function($a,$b) use(&$arr,$func) { return $func($arr[$a], $arr[$b], $a, $b); }); } function sort_me($a, $b, $ka = 0, $kb = 0) { return ($a < $b ? -1 : ($a > $b ? 1 : ($ka < $kb ? -1 : ($ka > $kb ? 1 : 0)) )); } $test_array = array(4,6,2,1,7,5,1,34,1,0,4); $test_array_uasort_key = $test_array; uasort_key($test_array_uasort_key, 'sort_me'); print_r($test_array_uasort_key);