How to extract the information we need from the JSON (VK API) response?

Question

PHP

Good afternoon. Using the VK API, namely the wall.get method, I get data about the community, where information about the proposed news is stored.
It comes to me as a JSON response:

{"response":{"count":3,"items":[{"id":8,"from_id":443375543,"owner_id":-148880857,"date":1503264466,"marked_as_ads":0,"post_type":"suggest","text":"фыафоывлдфыов","can_publish":1,"can_delete":1,"comments":{"count":0}}]}}

From all this JSON response, I need to extract information about "count" only.
Here is the code:

$request_params_for_suggests = [
'access_token' => $token['access_token'],
'domain' => $screen_name,
'count' => '1',
'filter' => 'suggests',
'v' => '5.68',
];
            
$url_for_suggests = "https://api.vk.com/method/wall.get?" . http_build_query($request_params_for_suggests);	
$result_suggests = file_get_contents($url_for_suggests);
$decode_suggests = json_decode($result_suggests);
foreach ($decode_suggests->response as $suggests_result)
$suggests = $result_suggests //Что тут надо прописать, чтобы получить информацию о "count" ? ;

Tried different ways, doesn't work. Help, who knows)
PS I use foreach so that it runs through all the communities and issues for each of them.