mc-cms-namelessmc/modules/Core/queries/servers.php

<?php

$query_interval = Settings::get('minecraft_query_interval', 10);

// Check cache to see when servers were last queried
$cache->setCache('server_query_cache');

if (isset($_GET['key'])) {
    // Get key from database - check it matches
    $key = Settings::get('unique_id');
    if ($key === null || $_GET['key'] != $key) {
        die();
    }
} else {
    if ($cache->isCached('last_query')) {
        $last_query = $cache->retrieve('last_query');
        if ($last_query > strtotime($query_interval . ' minutes ago')) {
            // No need to re-query
            die('1');
        }
    }
}

// Get query type
$query_type = Settings::get('query_type', 'internal');

// Query
$servers = DB::getInstance()->get('mc_servers', ['id', '<>', 0])->results();
if (count($servers)) {
    $results = [];

    foreach ($servers as $server) {
        // Get query address for server
        $full_ip = [
            'ip' => $server->ip . (is_null($server->port) ? '' : ':' . $server->port),
            'pre' => $server->pre,
            'name' => $server->name
        ];
        $result = $query_type === 'plugin' ? PluginQuery::singleQuery($server->id, $language) : MCQuery::singleQuery($full_ip, $query_type, $server->bedrock, $language);

        if ($server->parent_server > 0) {
            $result['parent_server'] = $server->parent_server;
        }

        $results[$server->id] = $result;
    }

    // Parent servers
    foreach ($results as $id => $result) {
        if (isset($result['parent_server'], $results[$result['parent_server']])) {
            $results[$result['parent_server']]['player_count'] += $result['player_count'];
        }
    }

    // Insert into db
    foreach ($results as $id => $result) {
        // Insert into db
        DB::getInstance()->insert('query_results', [
            'server_id' => $id,
            'queried_at' => date('U'),
            'players_online' => ($result['player_count'] ?? 0)
        ]);
    }

    $cache->store('last_query', date('U'));
}

die('2');