Edit report at https://bugs.php.net/bug.php?id=22488&edit=1
ID: 22488
User updated by: ajes2kemais at gmail dot com
Reported by: ajes2kemais at gmail dot com
Summary: Permission denied for unlink() , copy(), rename(),
move_uploaded_file() FAT32
Status: Not a bug
Type: Bug
-Package: Filesystem function related
+Package: *General Issues
Operating System: Windows NT 4.0 SP6
PHP Version: 4.2.3
Block user comment: N
Private report: N
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Previous Comments:
------------------------------------------------------------------------
[2003-03-17 10:19:48] kemal at thelimelight dot nl
*** Still more info:
Microsoft acknowledge this problem (caching of objects requested via FTP/HTTP)
affecting IIS 4.0. See for example:
http://support.microsoft.com/default.aspx?scid=KB;en-us;q184956
http://support.microsoft.com/default.aspx?scid=kb;en-us;191742
http://support.microsoft.com/default.aspx?scid=kb;EN-US;182626
Suggested workarounds:
a) Disable IIS caching (registry change)
b) Lowers caching time (registry change)
c) Wait ~30 seconds in a loop while overwriting file (script change)
d) Use copy() instead of move_uploaded_file() (script change). It appears that
copy() has less problem than other methods.
------------------------------------------------------------------------
[2003-03-02 05:18:33] w...@php.net
Not a bug in PHP; PHP cannot write to a file that is in use; it is your
responsibility to work around this problem with IIS in your script.
As a suggestion, you could try adding a 2 second sleep before attempting to
move the file; this should allow enough time for the OS to decide that the
access is OK.
------------------------------------------------------------------------
[2003-03-02 03:49:28] kemal at thelimelight dot nl
**** New Discovery: the 'permission denied' problem outlined above only
manifests itself when the existing file to be overwriten has just been recently
accessed by IIS (ie the image file has been very recently requested by a HTML
page).
Eliminating the line which contains the <IMG SRC="%s"> tag in the sample script
above results in perfect running of the script.
Conclusion: any attempt to overwrite the file was denied by the OS (NT4 in my
case) because the file was marked "in-use". It should not have been so, because
the file is only accessed for a short time, and it happened a few minutes
before. I don't know whether this is an IIS bug or PHP bug.
------------------------------------------------------------------------
[2003-03-01 20:06:07] kemal at thelimelight dot nl
**** Additional test done with PHP 4.3.2-dev (build date Mar 2 2003 02:16:38):
same result as with previous versions.
------------------------------------------------------------------------
[2003-03-01 11:36:26] w...@php.net
Please try using this CVS snapshot:
http://snaps.php.net/php4-STABLE-latest.tar.gz
For Windows:
http://snaps.php.net/win32/php4-win32-STABLE-latest.zip
------------------------------------------------------------------------
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