Bug #52176 [Com]: unlink() cannot delete symbolic link which points to a directory

Edit report at https://bugs.php.net/bug.php?id=52176&edit=1 ID: 52176 Comment by: DiablosOffens at gmx dot de Reported by: o_shes01 at uni-muenster dot de Summary: unlink() cannot delete symbolic link which points to a directory Status: Not a bug Type: Bug Package: Filesystem function related Operating System: Windows Vista SP2 PHP Version: 5.3.2 Block user comment: N Private report: N New Comment: There is actually a difference between Linux and Windows here. This difference is not documented in any way, not by PHP nor by Microsoft. Sure, the documentation for DeleteFile has a section "Symbolic link behavior", but it doesn't mention the special case for a directory, because the whole site (https://msdn.microsoft.com/en-us/library/windows/desktop/aa363915%28v%3dvs.85%29.aspx) only mentions the case where a file path is passed to this function. So it holds true that unlink works for symbolic links to files, but at least until Windows Server 2012 R2 it is proven that it doesn't work for symbolic links to directories. It would be nice to see a bug fix for PHP, to get less surprises on different platforms. Note: The C-runtime function "unlink" from Microsoft's msvcr*.dll is only a wrapper for the Win32-API function "DeleteFile". Previous Comments: ------------------------------------------------------------------------ [2013-10-21 19:38:30] lucas dot ekrause at gmail dot com @felipe@php.net > Please double-check the documentation [...] I did, but didn't find anything documenting this issue. Can you please post a link to the page which is documenting it? ------------------------------------------------------------------------ [2013-07-03 15:39:38] kulbakin at ya dot ru Have similar issue with Windows 7 64 bit php 5.3.26 unlink() for a link created earlier with symlink() call for a directory returns Warning: unlink([...]): Permission denied in [...] on line [...] and rmdir() works for it, but on *nix unlink() works for such links. ------------------------------------------------------------------------ [2011-12-15 13:54:10] o_shes01 at uni-muenster dot de Assuming that $fname is absolute filename of a symbolic link, which points to a directory. On Linux, unlink($fname) deletes the link itself, and rmdir($fname) does NOT work. On Windows, unlink($fname) does not work, and rmdir($fname) deletes the link. This behaviour is not documented in any way. If this is not a bug, then which is the correct way to delete a symbolic link which points to a directory? ------------------------------------------------------------------------ [2011-11-15 15:55:07] felipe@php.net Thank you for taking the time to write to us, but this is not a bug. Please double-check the documentation available at http://www.php.net/manual/ and the instructions on how to report a bug at http://bugs.php.net/how-to-report.php ------------------------------------------------------------------------ [2010-06-24 19:37:57] o_shes01 at uni-muenster dot de Description: ------------ unlink($fname) fails if the file named by $fname is a symbolic link which points to a directory. Such a link (not the directory which it points to!) can however be deleted via "rmdir($fname)", which is also a bug (IMHO). Note: if the link points to a regular file (not directory), then unlink works as expected (deletes the link, not the file pointed to). ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=52176&edit=1