From: steve at nexusuk dot org
Operating system: Linux (Fedora Core 4)
PHP version: 5.0.4
PHP Bug Type: Filesystem function related
Bug description: stat cache can cause problems after changing directory
Description:
------------
If you use relative path names and change the working directory then the
cached data may point at the wrong file.
Reproduce code:
---------------
$a = file_exists('foo.txt');
chdir('bar');
$b = file_exists('foo.txt');
Expected result:
----------------
The second file_exists() call should check the file exists since it is not
the same file as the original call.
The stat cache should probably reference files by their absolute path
names, or chdir() should clear the stat cache to ensure this doesn't
happen.
Actual result:
--------------
If 'foo.txt' existed when checked the first time then the second
file_exists() call will also return true, even if 'bar/foo.txt' doesn't
exist.
--
Edit bug report at http://bugs.php.net/?id=33610&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=33610&r=trysnapshot4
Try a CVS snapshot (php5.0):
http://bugs.php.net/fix.php?id=33610&r=trysnapshot50
Try a CVS snapshot (php5.1):
http://bugs.php.net/fix.php?id=33610&r=trysnapshot51
Fixed in CVS: http://bugs.php.net/fix.php?id=33610&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=33610&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=33610&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=33610&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=33610&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=33610&r=support
Expected behavior: http://bugs.php.net/fix.php?id=33610&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=33610&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=33610&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=33610&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=33610&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=33610&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=33610&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=33610&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=33610&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=33610&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=33610&r=mysqlcfg
