$url = $url_get_kbm2."?".http_build_query($arr_post_out);
$out_txt = file_get_contents($url);
$data = json_decode($out_txt,true);
foreach($data['response']['items'] as $val) {
echo 'Госномер: '.$val['gosnumber'].' / Марка: '.$val['mark'];
}