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<?php
class DBStaticUser extends DBStaticRecord {
public static $_table = 'users';
public static $_idField = 'id';
/**
* @param int $user_id
*
* @return string[]
*/
public static function getOnlineTime($user_id) {
$user_record = static::getRecordById($user_id, array('username', 'onlinetime'));
return !empty($user_record) ? $user_record : array();
}