删除上级目录下的文件

发布于 2024-10-02 17:07:38 字数 1480 浏览 9 评论 0原文

我在从更高的目录中删除文件时遇到问题，我找到了这篇文章并尝试了它，但没有运气......：

gotdalife 在 gmail dot com 2008 年 9 月 25 日 02:04
致所有遇到问题的人权限被拒绝错误，它是有时当您尝试时会导致删除文件夹中的文件在你的层次结构中处于更高的位置工作目录（即当尝试删除以“../”开头的路径）。
因此，要解决此问题，您可以使用 chdir() 来改变工作目录到文件所在的文件夹您要取消链接的位置。

<?php
>     $old = getcwd(); // Save the current directory
>     chdir($path_to_file);
>     unlink($filename);
>     chdir($old); // Restore the old working directory     ?>

这是我当前拥有的代码：

session_start();

if (!isset($_SESSION['agent']) OR ($_SESSION['agent'] !=md5($_SERVER['HTTP_USER_AGENT']))){

    require_once ('includes/login_functions.inc.php');
    $url = absolute_url();
    header("Location: $url");
    exit();
}  



$folder = $_GET['folder'];
$filename = $_GET['name'];
$path = "../gallery/photos/$folder";

if (isset($_POST['submitted'])) {

    if ($_POST['sure'] == 'Yes') {  

        $old = getcwd(); // Save the current directory
        chdir($path);
        unlink($filename);
        chdir($old); // Restore the old working directory  

    }
    else{

        echo '<p>The photo has NOT been deleted.</p>';
    }
}

我收到错误消息：

警告：unlink() [function.unlink]：没有错误 J:\xampp\htdocs\bunker\admin\delete_file.php 第 37 行

第 37 行是：

unlink($filename);

有人能看到我做错了什么吗？

原文

I'm having problems deleting a file from a higher directory, I found this post and tried it but no luck....:

gotdalife at gmail dot com 25-Sep-2008
02:04
To anyone who's had a problem with the
permissions denied error, it's
sometimes caused when you try to
delete a file that's in a folder
higher in the hierarchy to your
working directory (i.e. when trying to
delete a path that starts with "../").
So to work around this problem, you
can use chdir() to change the working
directory to the folder where the file
you want to unlink is located.

<?php
>     $old = getcwd(); // Save the current directory
>     chdir($path_to_file);
>     unlink($filename);
>     chdir($old); // Restore the old working directory     ?>

here is the code that I currently have:

session_start();

if (!isset($_SESSION['agent']) OR ($_SESSION['agent'] !=md5($_SERVER['HTTP_USER_AGENT']))){

    require_once ('includes/login_functions.inc.php');
    $url = absolute_url();
    header("Location: $url");
    exit();
}  



$folder = $_GET['folder'];
$filename = $_GET['name'];
$path = "../gallery/photos/$folder";

if (isset($_POST['submitted'])) {

    if ($_POST['sure'] == 'Yes') {  

        $old = getcwd(); // Save the current directory
        chdir($path);
        unlink($filename);
        chdir($old); // Restore the old working directory  

    }
    else{

        echo '<p>The photo has NOT been deleted.</p>';
    }
}

I'm getting the error message :