Bug #75287 [NEW]: Builtin webserver crash after chdir in a shutdown function

From: manuele dot menozzi at gmail dot com Operating system: macOS / Linux Debian PHP version: 7.0.24 Package: Built-in web server Bug Type: Bug Bug description:Builtin webserver crash after chdir in a shutdown function Description: ------------ Hi, PHP's built-in webserver crashes if it's started with a router script with relative path and in a shutdown function there is a chdir to a different directory than one where the router script is. Test script: --------------- Create the file /home/user/router.php with the following content <?php function shutdownWithChdir() { chdir('/tmp'); } register_shutdown_function('shutdownWithChdir'); echo 'Hello World'; ?> Now in your terminal: $ cd /home/user $ php -S localhost:3000 router.php Now perform the first request to the webserver and see that correctly returns "Hello World". Then perform a second request. Expected result: ---------------- You would expect to get "Hello World" even for the second request. Actual result: -------------- Instead you get: Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0 Fatal error: Unknown: Failed opening required 'router.php' (include_path='.:') in Unknown on line 0 For every subsequent request. If you restart the webserver you'll get the same result: first request ok, subsequent requests error. This happens only if the chdir is done inside a "shutdown function" not if it's done in the "normal" script execution. I can confirm this bug on PHP 5.6, 7.0 and 7.1 (I do not remember the exact versions numbers) and I don't think it's related to the #74496. -- Edit bug report at https://bugs.php.net/bug.php?id=75287&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=75287&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=75287&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=75287&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=75287&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=75287&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=75287&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=75287&r=needscript Try newer version: https://bugs.php.net/fix.php?id=75287&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=75287&r=support Expected behavior: https://bugs.php.net/fix.php?id=75287&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=75287&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=75287&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=75287&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=75287&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=75287&r=dst IIS Stability: https://bugs.php.net/fix.php?id=75287&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=75287&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=75287&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=75287&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=75287&r=mysqlcfg