PHP :: Bug #47157 :: require_once('relative/path/some.file') includes file twice (symlinks involved)

Bug #47157

require_once('relative/path/some.file') includes file twice (symlinks involved)

Submitted:

2009年01月19日 23:06 UTC

Modified:

2009年01月22日 13:50 UTC

Votes:	2
Avg. Score:	3.0 ± 0.0
Reproduced:	0 of 0 (0.0%)

From:

stephanie4343 at yahoo dot com

Assigned:

Status:

Open

Package:

Scripting Engine problem

PHP Version:

5.2.8

OS:

FreeBSD 7.1

Private report:

CVE-ID:

None

View Developer Edit

[2009年01月19日 23:06 UTC] stephanie4343 at yahoo dot com

Description:
------------
What does the require_once function use to determine if a file has already been included or not?
Could mounting a filesystem with noatime affect it ? 
or serving it over NFS (with noatime) ?
p.s. the file I'm including is only in 1 directory

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[2009年01月20日 02:55 UTC] stephanie4343 at yahoo dot com

Hi, Thanks for the reply
Is there a way to print the internal array that require_once is using so I can diagnose this in the production environment ?

[2009年01月20日 12:33 UTC] jani@php.net

I asked for sample script because I'm guessing you propably used relative path instead of absolute. And hence could have issues with symlinks and such. So please give a short script that clearly demonstrates the problem.

[2009年01月22日 04:31 UTC] stephanie4343 at yahoo dot com

/home is a symlink to /usr/home as usual
the code is in /home/phonecode
you are right about the relative paths being used in the require_once calls.
once I changed the include_path to begin with /usr/home/phonecode rather than /home/phonecode it was resolved
but I'm dying for an answer as to why ? 
it still doesn't make sense to me as to why it would include it twice, or believe it hasn't inculded it the first time

[2009年01月22日 13:48 UTC] jani@php.net

IIRC, there is some issue with realpath() and *BSD. As in: It does not work. Just don't use relative paths. Ever.