Bug #79806 [Asn->Csd]: realpath() erroneously resolves link to link

Edit report at https://bugs.php.net/bug.php?id=79806&edit=1 ID: 79806 Updated by: cmb@php.net Reported by: cmb@php.net Summary: realpath() erroneously resolves link to link -Status: Assigned +Status: Closed Type: Bug Package: Filesystem function related Operating System: Windows NTS PHP Version: 7.3 Assigned To: cmb Block user comment: N Private report: N New Comment: Automatic comment on behalf of cmbecker69@gmx.de Revision: http://git.php.net/?p=php-src.git;a=commit;h=d5b59b4303642adac91df2c93969a72bc0f5fa7d Log: Fix #79806: realpath() erroneously resolves link to link Previous Comments: ------------------------------------------------------------------------ [2020-07-15 16:39:12] cmb@php.net The following pull request has been associated: Patch Name: Fix #79806: realpath() erroneously resolves link to link On GitHub: https://github.com/php/php-src/pull/5861 Patch: https://github.com/php/php-src/pull/5861.patch ------------------------------------------------------------------------ [2020-07-07 15:19:45] cmb@php.net Description: ------------ On Windows realpath() only resolves the first level (soft or hard) link, but does not go further. This does neither match the behavior on Linux (as far as I know), not the documentation which states: | The resulting path will have no symbolic link, […] Test script: --------------- <?php touch(__DIR__ . '/link.txt'); symlink(__DIR__ . '/link.txt', __DIR__ . '/link1.lnk'); symlink(__DIR__ . '/link1.lnk', __DIR__ . '/link2.lnk'); var_dump(substr(realpath(__DIR__ . '/link2.lnk'), strlen(__DIR__))); ?> Expected result: ---------------- string(9) "\link.txt" Actual result: -------------- string(10) "\link1.lnk" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=79806&edit=1