Online PHP editor | refs for OF4Eq

<?php $data = array( array("id"=>3, "name"=>"peter"), array("id"=>1, "name"=>"steve"), array("id"=>5, "name"=>"damian"), array("id"=>9, "name"=>"ethan") ); $compare = function($key, $order = SORT_DESC) { return function($a, $b) use ($key, $order) { if ($order === SORT_ASC) $order = -1; else $order = 1; if (is_numeric($a[$key])) return $order * ($a[$key] - $b[$key]); if (is_string($a[$key])) return $order * strcmp($a[$key], $b[$key]); return 0; }; }; usort($data, $compare("id", SORT_ASC)); print_r($data);