Bug #47126 [Com]: copy() caches incorrect stat info of file-target

Edit report at https://bugs.php.net/bug.php?id=47126&edit=1 ID: 47126 Comment by: t dot weber at digi-info dot de Reported by: a dot u dot savchuk at gmail dot com Summary: copy() caches incorrect stat info of file-target Status: No Feedback Type: Bug Package: Filesystem function related Operating System: linux PHP Version: 5.2.8 Block user comment: N Private report: N New Comment: Since the original reporter doesn’t seem to be interested in it anymore, I’m speaking up. This bug is still present in PHP 5.3.10. I agree with the original reporter that the documentation should be updated. However, I have not looked into PHP’s source code and cannot comment on his proposed solution. Previous Comments: ------------------------------------------------------------------------ [2009-12-23 01:00:01] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2009-12-15 01:03:07] felipe@php.net Please try using this snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://windows.php.net/snapshots/ ------------------------------------------------------------------------ [2009-04-09 01:00:01] php-bugs at lists dot php dot net No feedback was provided for this bug for over a week, so it is being suspended automatically. If you are able to provide the information that was originally requested, please do so and change the status of the bug back to "Open". ------------------------------------------------------------------------ [2009-04-01 11:11:23] jani@php.net Please try using this CVS snapshot: http://snaps.php.net/php5.2-latest.tar.gz For Windows: http://windows.php.net/snapshots/ ------------------------------------------------------------------------ [2009-01-16 12:17:08] a dot u dot savchuk at gmail dot com Description: ------------ Function copy() has a bug (or strange behavior). When you copy file to _already_ existed file-target, then info of this file-target will be cached before rewrite. Workaround here is usage of clearstatcache(). Also other problem is that copy() function is not listed in list of cached functions in manual for clearstatcache(). As i understand from source code, the problem is that copy() uses php_stream_stat_path_ex() [ _php_stream_stat_path() ] function which stores stat info in cache. Correct solutions are: 1. add parameter to php_stream_stat_path_ex() to not store info to cache and call it for destination path in php_copy_file_ex() 2. clear cache after successfull call of php_stream_stat_path_ex() for destination path in php_copy_file_ex(). Reproduce code: --------------- <?php $source = '/t1.t'; $target = '/t2.t'; file_put_contents($source, 'aaaaaaaaaa'); file_put_contents($target, 'a'); clearstatcache( true ); copy( $source, $target ); var_dump( filesize($target) ); ?> Expected result: ---------------- int(10) Actual result: -------------- int(1) ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=47126&edit=1