note 118831 added to function.array-column

I added a little more functionality to the more popular answers here to support the $index_key parameter for PHP < 5.5 <?php // for php < 5.5 if (!function_exists('array_column')) { function array_column($input, $column_key, $index_key = null) { $arr = array_map(function($d) use ($column_key, $index_key) { if (!isset($d[$column_key])) { return null; } if ($index_key !== null) { return array($d[$index_key] => $d[$column_key]); } return $d[$column_key]; }, $input); if ($index_key !== null) { $tmp = array(); foreach ($arr as $ar) { $tmp[key($ar)] = current($ar); } $arr = $tmp; } return $arr; } } ?> ---- Server IP: 72.52.91.14 Probable Submitter: 74.204.99.226 ---- Manual Page -- http://php.net/manual/en/function.array-column.php Edit -- https://master.php.net/note/edit/118831 Del: integrated -- https://master.php.net/note/delete/118831/integrated Del: useless -- https://master.php.net/note/delete/118831/useless Del: bad code -- https://master.php.net/note/delete/118831/bad+code Del: spam -- https://master.php.net/note/delete/118831/spam Del: non-english -- https://master.php.net/note/delete/118831/non-english Del: in docs -- https://master.php.net/note/delete/118831/in+docs Del: other reasons-- https://master.php.net/note/delete/118831 Reject -- https://master.php.net/note/reject/118831 Search -- https://master.php.net/manage/user-notes.php