任何人都可以建议一个简单的代码，以便系统在空闲时在 5 分钟后自动注销.我正在使用会话登录 - Can anyone suggest a simple code so that the system will auto logout after 5 min if it is idle. I'm using session for login

Can anyone suggest a simple code so that the system will auto logout after 5 min if it is idle. I'm using session for login

登录后我的一个php页面的示例（adminview.php）

<?php
    session_start();
    if(!(isset($_SESSION['username'])))
    {
        header("Location:index.php");
    }
    else
    {
        include "NavigationBar/adminNav.php";
        }
    ?>
    <html>
        <head>
            <meta charset="utf-8">
            <meta name="viewport" content="width=device-width, initial-scale=1">
            <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
            <link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
            <script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
            <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
            <script src="js/responsiveslides.min.js"></script>
            <link rel="stylesheet" type="text/css" href="css/SlideShow.css">
            <title>e-Moments</title>
        <link rel="shortcut icon" href="Image/titleIcon.png" />
        </head>
        <body background="Image/test.png">
            <div class="container">
                <div class="row">
                    <div class=" col-md-12 col-xs-12 col-sm-12 col-lg-12">
                        <div class="panel panel-default">
                            <div class="panel-body">
                                <ul class="rslides">
                                    <li><img src="Image/SlideShow.png" alt=""></li>
                                    <li><img src="Image/GuestBook.png" alt=""></li>
                                    <li><img src="Image/adminModule.png" alt=""></li>
                                </ul>
                            </div>
                        </div>
                    </div>
                </div>
                <div class="row">
                        <div class="col-md-3 col-sm-3 col-xs-6 col-lg-3">
                            <a href="profile.php" class="btn btn-default btn-sm"><br /><br /><br /><br />
                            <img class="img-responsive" src="Image/HomeProfile.png" /><br />profile<br /><br /><br /><br /><br /><br /></a>
                        </div>
                        <div class=" col-md-3 col-sm-3  col-xs-6 col-lg-3">
                            <a href="AdminRegister.php" class="btn btn-default btn-sm"><br /><br /><br /><br />
                        <img class="img-responsive" src="Image/HomeUsers.png" /><br />Account Status<br /><br /><br /><br /><br /><br /></a>
                        </div>
                        <div class="hidden-md hidden-sm hidden-lg">
                        &nbsp; &nbsp;
                        </div>
                                <div class=" col-md-3 col-sm-3 col-xs-6 col-lg-3">
                            <a href="GuestBook.php" class="btn btn-default btn-sm"><br /><br /><br /><br />
                    <img class="img-responsive" src="Image/HomeBook.png" /><br />Guest Book<br /><br /><br /><br /><br /><br /></a>
                        </div>

                        <div class=" col-md-3 col-sm-3 col-xs-6 col-lg-3">
                            <a href="dashboard.php" class="btn btn-default btn-sm"><br /><br /><br /><br />
                        <img class="img-responsive" src="Image/HomeDashboard.png" /><br />Dashboard<br /><br /><br /><br /><br /><br /></a>
                        </div>
                        </div>
                        <div class="row">
                        &nbsp;
                        </div>
            </div>
            </div>  
        </body>
</html> 
<?php

?>

这是你的答案。

//on pageload
session_start();
$idletime=300;//after 300(5*60) seconds the user gets logged out
if (time()-$_SESSION['timestamp']>$idletime){
    session_destroy();
    session_unset();
}else{
    $_SESSION['timestamp']=time();
}
//on session creation
$_SESSION['timestamp']=time();

希望它能帮助你:)