Online PHP editor | refs for 7Pdhu

<?php $array = array ( array( 'id' => '2', 'name' => 'Item2', 'children' => array( array( 'id' => '1', 'name' => 'Item1', 'children' => array( array('id' => '5', 'name' => 'Item5') ) ), array( 'id' => '4', 'name' => 'Item4' ) ) ), array( 'id' => '3', 'name' => 'Item3' ) ); function list_items($array, $parent = 0) { $output = array(); foreach ($array as $arr) { $output[] = array('id' => $arr['id'], 'name' => $arr['name'], 'parent' => $parent); if (is_array($arr['children'] ?? NULL)) { $output = array_merge($output, list_items($arr['children'], $arr['id'])); } } return $output; } $items = list_items($array); print_r($items);