Bug #22488 [Opn->Csd]: Permission denied for unlink() , copy(), rename(), move_uploaded_file() FAT32

Edit report at https://bugs.php.net/bug.php?id=22488&edit=1 ID: 22488 Updated by: felipe@php.net Reported by: ajes2kemais at gmail dot com Summary: Permission denied for unlink() , copy(), rename(), move_uploaded_file() FAT32 -Status: Open +Status: Closed Type: Bug Package: *General Issues Operating System: Windows NT 4.0 SP6 PHP Version: 4.2.3 -Assigned To: +Assigned To: felipe Block user comment: N Private report: N 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] wez@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] wez@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 ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at https://bugs.php.net/bug.php?id=22488 -- Edit this bug report at https://bugs.php.net/bug.php?id=22488&edit=1