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onClose时返回退出用户信息,后台打印数据正常,怎么前端就UID会变呢?是哪里有问题?

老大,我在onClose时返回退出用户信息,打印数据正常,前端打印uid会变呢?是哪里有问题?
imageimage

$close_user = '';
    if(isset($connection->uid)){
        $close_user = $worker->users[$connection->uid];
        unset($worker->users[$connection->uid]); //册除退出用户
    }
    $send_nr = [
        'type' => 'logout',
        'users' => $worker->users,
        'online' => count($worker->users),
        'dq_user' => '',
        'rsdata' => $close_user
    ];
    foreach($worker->connections as $conn){
        $conn->send(json_encode($send_nr));
    }
    var_dump($close_user);

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与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
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