From: webmaster at villagersonline dot com
Operating system: Linux
PHP version: 5.2.6
PHP Bug Type: *Directory/Filesystem functions
Bug description: chdir should clear relative entries in stat cache
Description:
------------
If you check a relative pathname with is_dir(), the result is cached.
However, chdir() does not invalidate that cache. Thus, after a chdir(),
is_dir() using the same relative pathname gives invalid results.
NOTE: In truth, I'm running PHP 5.2.5, not 5.2.6. But this is on a
professional hosting service, and I can't control the version.
Reproduce code:
---------------
<?
// note that if you run this script multiple times, then all the
// mkdir()s will give errors, since they already exist. That's
// irrelevant to the bug.
// I put this all inside a subdirectory so as to not clutter up the
// pwd of the script. Again, irrelevant to the bug.
mkdir("x");
chdir("x");
clearstatcache();
// key reproduce code starts here
mkdir("y");
mkdir("z");
var_dump(is_dir("z"));
chdir("y");
var_dump(is_dir("z")); // this is where the bug is exposed
var_dump(is_dir(getcwd()."/z"));
clearstatcache();
var_dump(is_dir("z"));
?>
Expected result:
----------------
bool(true)
bool(false)
bool(false)
bool(false)
Actual result:
--------------
bool(true)
bool(true)
bool(false)
bool(false)
--
Edit bug report at http://bugs.php.net/?id=45181&edit=1
--
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=45181&r=trysnapshot52
Try a CVS snapshot (PHP 5.3):
http://bugs.php.net/fix.php?id=45181&r=trysnapshot53
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=45181&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=45181&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=45181&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=45181&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=45181&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=45181&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=45181&r=support
Expected behavior: http://bugs.php.net/fix.php?id=45181&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=45181&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=45181&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=45181&r=globals
PHP 4 support discontinued: http://bugs.php.net/fix.php?id=45181&r=php4
Daylight Savings: http://bugs.php.net/fix.php?id=45181&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=45181&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=45181&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=45181&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=45181&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=45181&r=mysqlcfg
