Online PHP editor | refs for E18Uq

<?php $array1 = [ 1 => "tenants", 2 => "modules", ]; $array2 = [ "child" => [ "prefix" => "tenants", "slug" => "tenants", "child" => [ [ "prefix" => "modules/{id}", "slug" => "modules" ], [ "prefix" => "fetch/{id}", "slug" => "fetch" ], ], ], ]; $res = []; $result =[]; foreach ($array1 as $asd) { array_walk_recursive($array2['child'], function ($item, $key) use (&$result, &$res, &$asd) { if ($key == "slug") { if ($item == $asd) { $res[] = $item; } } if ($key == 'prefix') { $result[] = $item; } }); } print_r($result);