On 8/2/07, Ben Ramsey <ramsey@xxxxxxx> wrote:
> I'm trying to set a sticky bit on a directory with chmod(). The same
> octal value works from the command prompt, but it doesn't appear to work
> correctly with the PHP function. Anyone have an idea as to why?
>
> PROMPT (works):
> $> chmod 2775 /path/to/dir
>
> PHP (doesn't work):
> chmod('/path/to/dir', 02775);
>
> We've tested the PHP code on files, and it works, but it doesn't work on
> directories.
>
> Our current umask is 0002. We're using PHP 5.2.2 on Linux ########
> 2.6.9-42.0.10.ELsmp #1 SMP Fri Feb 16 17:17:21 EST 2007 i686 i686 i386
> GNU/Linux.
>
> --
> Ben Ramsey
> http://benramsey.com/
>
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>
>
Ben,
Drop the preceding 0 from the chmod() function parameters. The
four-digit octal value is preferred, and the 0 is the first bit to
show that there's no user- or group-specific execution (su-exec'ing,
basically) or "stickiness" to the file/directory. However,
three-digit values will work. In either case, five digits will not
work.
Right:
chmod 0755 file.php
chmod 1777 file.php
chmod('file.php',0755);
chmod('file.php',1777);
Will almost always work, but isn't entirely correct:
chmod 755 file.php
chmod 644 file.php
chmod('file.php',755);
chmod('file.php',644);
Will never (or at least, SHOULD never) work:
chmod 00755 file.php
chmod 01777 file.php
chmod('file.php',00755);
chmod('file.php',01777);
If you are interested in things like this, search the archives for
a post I made a few months back about permissions. It's a long one,
but in my opinion, a pretty damned good article stub.
/me pats self on back without regard.
--
Daniel P. Brown
[office] (570-) 587-7080 Ext. 272
[mobile] (570-) 766-8107
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