#!/usr/bin/env php
    // Listar solo usuarios online según rm_onlineradius
    public function listOnlineRadiusUsers(int $offset, int $limit): array {
        if ($this->hasTable('rm_onlineradius')) {
            $sql = "SELECT r.username, r.cid, r.cpeip FROM rm_onlineradius r ORDER BY r.username ASC LIMIT :off, :lim";
            $st = $this->db->prepare($sql);
            $st->bindValue(':off', $offset, PDO::PARAM_INT);
            $st->bindValue(':lim', $limit, PDO::PARAM_INT);
            $st->execute();
            return $st->fetchAll(PDO::FETCH_ASSOC);
        }
        return [];
    }
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<b>Warning</b>:  Use of undefined constant STDOUT - assumed 'STDOUT' (this will throw an Error in a future version of PHP) in <b>/var/www/html/isp-manager/bin/enforce.php</b> on line <b>51</b><br />
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<b>Warning</b>:  fwrite() expects parameter 1 to be resource, string given in <b>/var/www/html/isp-manager/bin/enforce.php</b> on line <b>51</b><br />