$json = json_decode(file_get_contents('api/datastat/data.json'), true);
if (!isset($json[$date]) OR !array_search($ip, array_column($json[$date], 'ip'))) {
$json[$date][] = ['ip' => $ip, 'time' => $time];
file_put_contents('api/datastat/data.json', json_encode($json));
}