Как создать такой массив программно (php)?

$array = [
"response" => [
"count" => 16,
"items" =>  [
[
 "id"=>"1",
        "is_dir"=> "true"    
],
[
 "id"=>"2",
        "is_dir"=> "false"    
]] ]]

<?php
$array = new stdClass();
$array->response = new stdClass();
$array->response->count = 16;
$array->response->items = [
	[
		"id" => "1",
		"is_dir"=> "true" 
	],
	[
		"id" => "1",
		"is_dir"=> "true" 
	],
];
 
var_dump(json_encode($array)); 
// string(89) "{"response":{"count":16,"items":[{"id":"1","is_dir":"true"},{"id":"1","is_dir":"true"}]}}"