php - Deleting files in higher directory -

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i'm having problems deleting file higher directory, found post , tried no luck....:

gotdalife @ gmail dot com 25-sep-2008 02:04

to who's had problem permissions denied error, it's caused when try delete file that's in folder higher in hierarchy working directory (i.e. when trying delete path starts "../").

so work around problem, can use chdir() change working directory folder file want unlink located.

<?php >     $old = getcwd(); // save current directory >     chdir($path_to_file); >     unlink($filename); >     chdir($old); // restore old working directory     ?>

here code 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') {            $old = getcwd(); // save current directory         chdir($path);         unlink($filename);         chdir($old); // restore old working directory        }     else{          echo '<p>the photo has not been deleted.</p>';     } }

i'm getting error message :

warning: unlink() [function.unlink]: no error in j:\xampp\htdocs\bunker\admin\delete_file.php on line 37

line 37 being:

unlink($filename);

can see i've done wrong?

i use absolute filepath names.

i'd define filedir constant in config, concatenate have absolute filepath, make call unlink().

btw: hope know code highly insecure.


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