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Request #38022 glob() problems
Submitted: 2006-07-06 15:10 UTC Modified: 2021-09-14 14:10 UTC
Votes:2
Avg. Score:4.0 ± 1.0
Reproduced:0 of 0 (0.0%)
From: flconseil at yahoo dot fr Assigned:
Status: Suspended Package: Filesystem function related
PHP Version: 5.1.4 OS: All
Private report: No CVE-ID: None
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From: flconseil at yahoo dot fr
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 [2006-07-06 15:10 UTC] flconseil at yahoo dot fr
Description:
------------
Today, glob() calls the libc glob() function, with the following problems:

- Possible inconsistencies between implementations (POSIX compliance)

- fnmatch not available outside of Unix : an internal glob() implementation would bring an internal fnmatch() implementation, which would allow fnmatch() on every platform.

- Important: on most (every ?) Unix systems, glob() is using stat() instead of lstat(). Thus, broken links are ignored. Inconsistant with a naive 'ls' which lists everything in the directory.

- The current glob() implementation in PHP (ext/standard/dir.c) assumes that all returned matches are in the same directory, which is wrong. So, the 'safe mode' and 'open_basedir' checks are wrong.

- glob() does not support streams, although most other directory functions support them. It cannot be done without implementing glob() internally.

- Apart from glob(), the chdir() and getcwd() functions should also support stream-wrapped directories. It would be easy to implement but it must be synchronized with the support of stream wrapped paths in the include path.

Reproduce code:
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Expected result:
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Actual result:
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 [2007-02-27 19:15 UTC] francois at tekwire dot net
An internal glob() implementation should also provide a flag to exclude hidden files (Unix: starting with a dot, Windows: hidden).
 [2016-12-30 23:50 UTC] cmb@php.net
-Package: Feature/Change Request +Package: Filesystem function related
 [2021-09-14 14:10 UTC] cmb@php.net
-Status: Open +Status: Suspended
 [2021-09-14 14:10 UTC] cmb@php.net
Note that on Windows, PHP uses an internal glob implementation[1]
as of PHP 4.3.0, but this doesn't solve all the mentioned issues
either (especially open_basedir does not reliably work), and using
that implementation for other platforms might not provide the full
feature set currently available (e.g. GLOB_ONLYDIR is not
supported by that implementation).

Anyway, it might still make sense to use this implementation for
all platforms, but that requires the RFC process[2].  Anybody is
welcome to pursue it; for the time being, I suspend this ticket.

[1] <https://github.com/php/php-src/blob/php-7.4.23/win32/glob.c>
[2] <https://wiki.php.net/rfc/howto>
 
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