Bug #77253 [NEW]: PHP_SELF value differs based on path to router script

From: andy at aiir dot com Operating system: *nix PHP version: 7.2.13 Package: Built-in web server Bug Type: Bug Bug description:PHP_SELF value differs based on path to router script Description: ------------ When running the PHP internal web server, the location of the router script affects the output of the PHP_SELF value in an unusual way. If I run PHP from the folder with the script in: $ php -S 0:8080 index.php And then call http://localhost:8080/, the value for PHP_SELF is /index.php. If I run the script from a parent directory (or any other location that differs from the script), e.g.: $ php -S 0:8080 src/index.php The value for PHP_SELF when request http://localhost:8080/foo/bar will be /foo/bar. I'm not certain if this behaviour is intentional or not, but if it is, why is it this way? We noticed this issue because it breaks a lot of popular routing libraries as they strip the content of PHP_SELF from the variable they discern the path from, so it fails to route requests correctly. Test script: --------------- <?php echo $_SERVER['PHP_SELF']; Expected result: ---------------- Expect the PHP_SELF value to always provide a path to the script, not change between this and the web requested path. -- Edit bug report at https://bugs.php.net/bug.php?id=77253&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=77253&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=77253&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=77253&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=77253&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=77253&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=77253&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=77253&r=needscript Try newer version: https://bugs.php.net/fix.php?id=77253&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=77253&r=support Expected behavior: https://bugs.php.net/fix.php?id=77253&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=77253&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=77253&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=77253&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=77253&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=77253&r=dst IIS Stability: https://bugs.php.net/fix.php?id=77253&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=77253&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=77253&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=77253&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=77253&r=mysqlcfg