webman/push统计在线人数问题https://www.workerman.net/webman

$api = new Api(
    str_replace('0.0.0.0', '127.0.0.1', config('plugin.webman.push.app.api')),
    config('plugin.webman.push.app.app_key'),
    config('plugin.webman.push.app.app_secret')
);
$result = $api->get('/channels', ['filter_by_prefix' => 'user-line-']);
if ($result || $result['status'] == 200) {
    $user_line_ids = []; //在线用户的id
    foreach ($result['result']['channels'] as $k => $v) {
        $user_line_ids[] = intval(ltrim($k,'user-line-'));
    }
}