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How Can I Have Permissions To Delete A File?


How can I have permissions to delete a file? example: I have to delete a file, but I don't to public users have permission to delete that file but, with a certain "login" they can.




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I want to delete a file using unlink() function. I'm getting a warning that says that I have no permissions to do that.

I suppose that is because the file I'm trying to delete is under the root directory path. I searched the forum about deleting files but found nothing alike my problem...

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File Permissions
Im in the process of creating a web based frontend for a program called ASK (Active Spam Killer - http://a-s-k.sourceforge.net) and am currently running into a problem. Currently there is a perl based web front end, but it lacks functionality, and is rather bland, although it does work, and it works without changing any file permissions.

The problem im running into is that PHP requires me to make changes to file permissions (ASK files are located OUTSIDE of the web tree) which might end up causing problems as far as security and privacy of email. Has anyone come to any reasonable answer for this type of problem as im sure its a issue for other programs people write.

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File Permissions....
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File Permissions After Copy()
This function basically creates a new dir in a determined location and copies the files from an established dir to the new dir. It copies the files and creates the folder ok, bit it sets the file permissons to 755 for the new folder and file contents. I then get a 550 error if I try to delete or chmod them. Any suggestions? I get permission errors in the script if I use the chgrp and chmod functions also. PHP Code:

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How Do You Create A File In PHP And Set Permissions To It?
How do you create a file in PHP and set permissions to it?

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I'm trying to get an open source PHP app working for my company.  It's giving me the following custom error:

FreeMED was unable to create a file to record the healthy status of the system.
The FreeMED directory should be owned by the user that the webserver is running as...
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But that is not advisable from a security standpoint.
I've narrowed it down to the line of PHP that's breaking it here:

$test = CreateObject('FreeMED.FreeMEDSelfTest');
As far as I can tell, I've made the directory it's using as open as possible and it's still giving me that error.  The owner is apache (user and group) and the permissions are (temporarily) set at 0777 (universal read/write).

Is there some PHP or Apache configuration that needs changed to allow PHP this kind of permission?

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File Permissions On Upload
I am uploading picture. This is part of the code

if(!move_uploaded_file($_FILES['fullSizePic'.$propId.$i]['tmp_name'], '../images/properties/'.$imageName) ){
chmod('../images/properties/' . $imageName , 0777);
}

The file uploads and moves into the properties folder. That folder's chmod is 777, but the file's chmod is only 600 making it unreadable by the server. I try to chmod it with php (as you can see above) and it doesn't work.

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Upload File Permissions Problem
I've moved an existing site (which I didn't write) from a apache/php/mysql
host under windows to a linux apache/php/mysql host.
I've sorted out most problems except one.

There is an upload function on the site, which uploads files via POST to
temp folder and then moves it into a folder on the host using php function
move_uploaded_file. Under windows this works fine but on the linux host the
uploaded file is created with 600 permissions so it cannot be accessed later
by site visitors. The folder it is uploaded into has 755 permissions. Is
there a way of setting the default file permissions so each uploaded file
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File Permissions Of PHP Session Files
I noticed that the file permissions (unix) of the PHP session files
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umask or chmod settings for it in the php.ini file. Can't find
anything in
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Creating A File, Uploading, And Permissions
I'm using php4 and i want to check for a file, if it doesn't exist it
should be created. My problem is i have to create it with specific
permissions specifically 666 so that the script can then write to it. I
don't have ftp access. I'm also looking for any tutorials, recent ones,
using php4 for creating file upload areas, i'm trying to make one of those
as well.

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File And Directory Permissions For PHP Application
I make the directory 0777 and then write the file then i make the file i tried a few but they keep from being read im sure the file is ok i think i can handdle file permissions but i think its directory permissions im having a prob with.

Its an image file i write it and then need to use it so make the directory 0777 and then write the file and then what to the file and what to the directory ?

i am using php ftp() but if anyone knows any differences with php chmod() then please tell me apart from that i do a 777 righth now and leave it at that.

what should i being to the directory and file after to make it secure because i dont whant people tampering with them ?

OH AND THIS PROBS ON TH MAC OSX 10.4 TIGER

my chmoding works fine on linux the way it is 0777 and then a 655

+ somtimes i play with the permissions of the directory throgh the os GUI or the shell and i got it to tell me i dont have permissions in the OS but in PHP its ok is this coz PHP got ownership of it when i messed with the addtional BIT.

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Minimun File Writing Permissions
I believe the chmod command -w- is write only, the minimum file writing permission but what is this in terms of numeric - chmod 755? or 777 .

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File Permissions Denied Error
i'm using the following code to create a file. PHP Code:

$fn = "file.php";
    $FileHandle = fopen($fn, 'w+') or die("can't open file");
    $stringData = "Something";
    fwrite($FileHandle, $stringData);
    fclose($FileHandle);

when i check the file properties i can see that the file's permission is set to 644 so when i use the following code to delete it i get a permission denied error. PHP Code:

$myFile = "file.php";
$fh = fopen($myFile, 'w') or die("can't open file");
fclose($fh);

$myFile = "$file.php";
unlink($myFile);

what shall i do to set the permission to 777 when creating the file?

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Chmod Mkdir And File Permissions..
I'm trying to create directories and move files with the right permissions. When I make a dir using mkdir I'm setting the permission to 777 to my folder variable $t2 below,

but when I check the chmod it's 755? When I copy files over to this folder the file permission are set to 644 and I can't even get rid of them on the server because it won't allow me to delete them. Is there anyway to set permissions to a file as you're using the copy function? Code:

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Change File Permissions On Uploaded Files?
I am trying to find a way to change the default file permissions for uploaded files using PHP. When I upload a file using my PHP script the default file permissions are 755. I would like the file to have 744.

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What File Permissions To Keep Files Safe From Outside Users
My php source files should have what file permissions to keep them safe from outside users.I have chmod 711 but i want somefiles to be able to be downloaded eg txt,doc files.

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Set Up The Permissions So That My Script Can Simply Fopen A File For Writing.
I am rather new to PHP and a relative newbie to Linux too.
I have a webserver at home (Apache 2.0.48 on SuSe 9.0, PHP4).
I have some scripts, one of them needs to be able to create logfiles
somewhere on my machine. It must also later be able to read from and write
to these files again.

Sofar I get a permission error. I tried chmodding 666 or 777 the directory
in which the files could reside, to no avail.
How do I set up the permissions so that my script can simply fopen a file
for writing. Or if that's not the issue, what am I doing wrong or
overlooking ?

The errors:
Warning: fopen(logfileslog1.txt): failed to open stream: Permission denied
in script1.php on line 142
Warning: fwrite(): supplied argument is not a valid stream resource in
script1.php on line 154
Warning: fclose(): supplied argument is not a valid stream resource in
script1.php on line 161
It's the first I am puzzled about, the 2nd and 3rd are a logical
consequence.

By the way, reading from and writing to a file I have previously created
myself with exactly the names I tried to get created by the script (echoed
the name, ok) is no problem at all.
So I don't think it has much to do with a safemode or open_basedir setting.
I also tried creating the scripts in the same dir the script itself resides.
Did not work either.

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Linux File Permissions On Maildir, Apache User
i have the following problem. I am trying to create maildir
directories on the local filesystem then chmod, chown them to
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reads and writes on these maildirs on the local filesystem and they
need to have courier:courier ownership. it does not work because the
directories are created with apache:apache ownership and apparently
only root can change ownership. My question is as follows. Is the
only solution to this problem to add the courier user to the apache
group?

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Open A File To Store Some Date :: Permissions Dilemma
I want to open a file to store some data. However, when I use fopen('filename', w) I get permission denied. So, I've changed the permissions of the directory to get rid of the permission denied problem. Unfortunately, this seemed to require changing the directory to have permissions 777.

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Download File And Delete File From Server With One Button Click
I want the user to be able to download a CSV file and delete the file from the server all with the click of a button.  Currently, in firefox, it will just display the CSV and not delete it. In IE, it will download the CSV and not delete it. Code:

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What Is The Best Way To Delete File ...?
I have script that allows a user to upload a txt file for processing, filtering, to save bandwidth,instead of user reuploading the file everytime he/she does a new process on the same file, i save the file to the server, and process from that file. What I want to be able to do is, when the user uploads a new file, or leaves the site, this temp file is automatically deleted (saves disk space).

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Delete File();
I was wondering if php4 has a built in function that could delete a file. In my case I need my php to delete a picture. (jpg, gif) Does php4 have the ability to delete an exsiting file? Something like this?? delete_image("../images/somePic.jpg");

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Delete A File
How do i delete a file from my server with php?

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Delete File
How do I delete a file with PHP?

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Delete File With Php
Im a little new in php, and just made a site where u can upload pictures, but how can i make it possible to delete pictures as well.

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I need to delete a compressed backup file after it has been sucessfully uploaded to a ftp server, the upload works fine using CRON and a php page. I have tried to delete the file using:

<?
$oldfile = "/home/#*$!/backup-10.8.2005_07-00-01_yyy.tar.gz";
unlink($oldfile);
?>

However I get a permission denied, what's wrong? Also, I don't know the exact file name, so what I really want to do is wildcard the file name like this:

<?
$oldfile = "/home/xxx/backup-*_yyy.tar.gz";
unlink($oldfile);
?>

Is this possible?

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Using Php To Delete A File In A Directory- Help
I can use php to execute the cp command to copy an image file into a directory.

Now I want to delete images in that directory if they are not named "picturelink.gif" when an entry with a corresponding id is deleted.

Below is the code I am using which doesn't seem to be working when it comes to deleteing the file. The directory has the correct permissions for read/write access.

$query = "DELETE FROM $userstable WHERE id ='$id' ";

if($picture != "picturelink.gif")
{
exec("rm $picture /virtualhosts/capefearantiques.com/www/pictures/$picture");
}

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Delete Lines From File:
How to delete $n first lines from $str if i know how much lines shuld remain in the string?

$str = "aaaaaaaaa
bbbbbbbb
ccccccccc
ddddddddd
...
zzz";

Can it be done easly with preg_replace? (i.e without splitting it by '', removing elements from array and joining tham back.

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How Do You Delete A File From A Listing Please?
I have the code:

<?php
if ($dir = @opendir("../project/proj_images")) {
while (($file = readdir($dir)) !== false)
if($file != ".." && $file != ".")
echo "<tr><td align="left" class="bodyblue2">$file</td></tr>";
closedir($dir);
}
?>

which displays a list of files in a directory.

What I want, is to be able to click on a file in the list and delete it.

I know you use unlink but how do you tie it in with the above code?

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Can I Delete A File From A PHP Script?
Is it possible to delete a file(a jpg in fact) from a PHP script. I would like to ad this functionality to an existing script that deletes a record from a MySQL db. Only the image name is stored in the db.

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<?
$delete = unlink("C:/domain/wwwroot/temp/0000000.txt");

if($delete)
{
echo "Succesfully Deleted";
}
else
{
echo "Could not Delete";
}
?>

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Php File Delete Form
How would i go about making a file delete form in php. so that the user can delete .jpg and .gif files from a web directory.

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How To Delete Last Line Of File
I have a flat file on the server which I append to from a HTML web form.
I need to delete the last line of the flat file before I append though.

How do i do that?

I have the following code. I'm not sure if it's correct.

$pattern = "</member>"; // what I want to look for.
$ora_books = preg_grep($pattern, file('/path/to/your/file.txt'));

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I'm not sure how to do this in php - need to calculate and delete an unspecified
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<?php
//append $visitor to the bottom of $visdata
$fp = fopen($visdata,"a");
fwrite($fp, "
".$visitor;)
//count the lines in $visdata
$lines = count($visdata);
if $lines > 10
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//delete as many lines off the top as necessary
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fclose($fp);
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Mysql Row And File Delete
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Delete A File Within A Directory
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I have a script that will list all the files in a directory and, in the output, I'd like to create a link next to each file that says "delete This file" and then will delete the file from the /dir

filename1.jpg delete file
filename2.jpg delete file
filename3.jpg delete file
filename4.jpg delete file

I try but when I click on the delete button I delete all the files of the /dir...

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Delete File Content, Possible ?
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I have searched php.net for a function but couldnt find anything in that direction. Did I missed something ? Or is it not possible ?

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