I use code in PHP for get info about season. How I can get result in array?? Thanks.
curl_setopt_array($curl, array(
CURLOPT_URL => "https://api.themoviedb.org/3/tv/xxx/season/xxx?language=en-US&api_key=xxx",
$response = curl_exec($curl);
echo $response;
Your expected result seems to be a JSON-object, according to the documentation you linked - so echo won't work. Use var_dump(json_decode($response)); to see the result.
If you want to work with the JSON-object in PHP you will have to "cast" it to a PHP-object:
$newObject = json_decode($response);
You can than access the objects properties in PHP like so:
echo $newObject->id;
echo $newObject->name;
etc.. See the PHP documentation on this topic here: PHP - json-decode