Question

我有一个index.php页面，里面设置了一个会话（$ _ SESSION ['expire']）。此会话应在30分钟后取消设置，我们应该重定向到index.php（再次验证用户）。

我的index.php代码的一部分：

<?php
session_start();
//if user name and password are valid do the following:
$_SESSION['start'] = time(); 
$_SESSION['expire'] = $_SESSION['start'] + (30 * 60) ;
?>

<a href="index.php?action=ContentManager">
    content 
</a>

<?php    
if(isset($_REQUEST['action']))

{
    //if the expiration time has not reached yet do the following
    $now=time();
    if (isset($_SESSION['expire']) && ($now<= $_SESSION['expire'])) 
    {
        switch($_REQUEST['action'])
        {
            case 'ContentManager' : 
              include('model/content.php');
              $contents = getContent($conn, ' where 1=1');
              include('view/contentmanager.php');
              break;
        }
    }

    else if($now > $_SESSION['expire'])
    {
        unset($_SESSION['expire']);
        session_destroy();
        header('location:index.php');
       exit();
    }   
}
?>

问题是，当我在30分钟后点击contentmanager链接时，我们将使用url重定向到空白页面：的index.php？行动= contentmanager

只有当我再次刷新页面时，我们才会重定向到index.php本身，并且会出现登录表单。

如此简洁：我必须刷新页面两次以重定向到正确的页面。

提前致谢

Answer 1

使用ob_start();

<?php
session_start();
ob_start();
//if user name and password are valid do the following:
$_SESSION['start'] = time(); 
$_SESSION['expire'] = $_SESSION['start'] + (30 * 60) ;
?>

<a href="index.php?action=ContentManager">
    content 
</a>

<?php    
if(isset($_REQUEST['action']))

{
    //if the expiration time has not reached yet do the following
    $now=time();
    if (isset($_SESSION['expire']) && ($now<= $_SESSION['expire'])) 
    {
        switch($_REQUEST['action'])
        {
            case 'ContentManager' : 
              include('model/content.php');
              $contents = getContent($conn, ' where 1=1');
              include('view/contentmanager.php');
              break;
        }
    }

    else if($now > $_SESSION['expire'])
    {
        unset($_SESSION['expire']);
        session_destroy();
        header('location:index.php');
       exit();
    }   
}
ob_end_flush();
?>

header（'location：index.php'）在第一次运行时不起作用

1 个答案: