Online PHP editor | output for ttkdj

<?php function mapCallback($callback, $array){ $output = []; array_map(function($value) { $callback($value, function($value) use (&$output) { $output[] = $value; }); }, $array); return $output; } function mapCallback($callback, $array){ $output = []; $push = function ($value) use (&$output) { $output[] = $value; }); foreach ($array as $value) { $callback($value, $push); } return $output; }