<?php $arr = ["prefix" => "a", "children" => ["prefix" => "b", "children" => ["prefix" => "c", "children" => []]]]; function getPrefix($v, $k) { global $ps; if ($k == "prefix") $ps[] = $v; } array_walk_recursive($arr, 'getPrefix'); print_r($ps); echo implode("/", $ps);
You have javascript disabled. You will not be able to edit any code.