unlink problem on windows

mlewczuk

Hello,
unfortunatelly my app must work on windows & linux os. So I must code my app with functions which are available for this systems. Currently I have huge problem with unlink -> I have used it many times before, and I didn't have any problems till now... Maybe you have some experiences with this:

I call function:

$dir = "".$GLOBALS['dir_name']."/$file_name";
unlink($dir);

the file isn't deleted -> it is still there but I can't read this file, and after few seconds it disappear....

Maybe problem wouldn't be so huge if one thing: after deleting file I want to create NEW one, with the same name... and I can't becouse the file already exist and I can't read/write/delete that file in next few seconds...

I also have the same problem when I use move_uploaded_file -> it shoud overwrite old file and create new... but it's not working.

Any suggestions ? I use PHP 4.3.0, Apache 2.0.43, WinXP

sijis

are you trying to create a new file immediately after you unlink() it with the exact same name?

Somethign you could try is to check if the file exist before you unlink() it?

so maybe something like:

$dir = "".$GLOBALS['dir_name']."/$file_name"; 

if (file_exists($dir)){ // or maybe is_file($dir)
    unlink($dir); 
}

you can easily change this to help you figure out if the file exists before you move it.

i've never used unlink() but i went to php.net and the user comments seems to be helpful.

http://www.php.net/manual/en/function.unlink.php

in short it seems it could be permission related.

and for move_uploaded_file()

http://www.php.net/manual/en/function.move-uploaded-file.php

there also seems to be some good comments there for you.