Bug #74585 [Com]: chroot doesn't change __DIR__ constant

Edit report at https://bugs.php.net/bug.php?id=74585&edit=1 ID: 74585 Comment by: spam2 at rhsoft dot net Reported by: joomla at itronic dot at Summary: chroot doesn't change __DIR__ constant Status: Open Type: Bug Package: CGI/CLI related Operating System: Linux PHP Version: 7.0.19 Block user comment: N Private report: N New Comment: No -__DIR__ reflects the physical directory where the current file is stored and is practically the same as __FILE__ without the basename - it is known at compile time and any change after that would break half of the world in existing code Previous Comments: ------------------------------------------------------------------------ [2017-05-12 21:16:14] joomla at itronic dot at In my current use case I execute chroot in auto_prepend_file so I'm not sure when the __FILE__ constant is filled. The reason for this is to execute customer cronjobs in a jail. And most frameworks uses __DIR__ to require other files like autoload.php... In this case it seams that the executed file get loaded (and __DIR__ is set) before the auto_prepend_file is executed. I'm not sure if it would be possible that at least this can be fixed. ------------------------------------------------------------------------ [2017-05-12 20:40:51] requinix@php.net It's chroot, not chdir. The idea is that __DIR__ and friends should be updated to reflect the new path to the file after the chroot(2) call. Which is not necessarily possible (eg, file is outside the new root) so I don't know if anything can/should be done about it anyways. echo __FILE__; // originally /path/to/file.php chroot("/path"); echo __FILE__; // now /to/file.php ------------------------------------------------------------------------ [2017-05-12 20:29:18] dm@php.net > __DIR__ The directory of the file. It is not affected by chdir(), as expected, maybe you're looking for getcwd(). ------------------------------------------------------------------------ [2017-05-12 19:28:15] joomla at itronic dot at Description: ------------ If you change the root dir, the __DIR__ doesn't reflect the change. Maybe this effects other Magic constants. Test script: --------------- chroot('/tmp'); echo __DIR__; Expected result: ---------------- __DIR__ should have the correct path. Actual result: -------------- The old path ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=74585&edit=1