chmod(): Operation not permitted!

misxa

Hi ,

I keep getting this error :

chmod(): Operation not permitted

whenever i try to chmod any file using this code in a php file : chmod($filename,0777);

I thought this might be because user " nobody " is not owning these files so i try to do this : chown($filename,nobody);
chmod($filename,0777);

but then i start getting two errors .. chown(): Operation not permitted

& chmod(): Operation not permitted

Now I wish to know where i am going wrong and what could be the possible solution for this?

Is it because my web hosting guy as configured "nobody" user with no chmod rights? or is it my coding .. hehehe

PS: I don't want to use exec("chmod 0777 file.txt"); cause it is not secure and is resource hungry command too..

I have tried to by setting my parent and all its sub directories permission to 0777 by ftp too but doesn't solves my problem.

Note : I can create directories using php file and command mkdir too. (just wondering if "nobody" is allowed to create directories then why can't change chmods?)

Thanxs in Advance

TTT

function has been disabled

johnnyblaze1980

or your using IIS which doesn't have the support, in that case just have read, write, and execute in the ntfs file permissions on the file or folder your trying to chmod. should work then. chmod is unix based.

drew010

it is because php is running as nobody and your file is most likely belonging to your username. so it wont let it chmod the file of another user.

cahva

If your server has FTP-support enabled, use PHP's ftp-functions to create dirs and chmod files. Works with our server(we have safe mode on and openbasedir etc.).

misxa

Well, my first idea was to do the files manipulation using PHP's ftp-functions, but when I finished the script, I realized that PHP FTP module was not enabled by the webmaster, and he did't want to!!! So, I was forced to do workarounds.

The web server is under Linux operating system, and PHP scripts are being run as NOBODY is owning them. Browsing my files located on the server, I noticed that the owner was NOBODY also, as my dirs and files are created through the PHP script, but I couldn't find the way to change the permissions, and therefore manipulate the dirs and files via PHP script, or through the FTP agent...

jenni

Did you ever find a solution to this issue? I am having the same problem. Files and directories created by PHP have "nobody" as the owner, so I cannot manipulate them. The FTP function is not enabled like you. Any luck?

misxa

Unfortunately, those are the restrictions mine and your webmaster have made, so we must live with them...

drew010

you should have the server admin look into installing phpsuexec. it is like the cgi version, so all php scripts will be executed as the user whose directory they are in, and not as nobody. that way those file functions like chmod mkdir and unlink etc will work for you.