Bug #76901 [NEW]: method_exists + RecursiveDirectoryIterator::getSubPathName conflict

From: p dot bytniewski at neurosys dot com Operating system: Linux - debian based PHP version: 7.2.10 Package: SPL related Bug Type: Bug Bug description:method_exists + RecursiveDirectoryIterator::getSubPathName conflict Description: ------------ Having the following directory structure: ./directory ./directory/subdirectory ./directory/subdirectory/file2 ./directory/subdirectory/file1 when executing the provided test script, after encountering second file there seems to be some corruption. If there's no call to method_exists, everything works fine. Test script: --------------- <?php $path = 'directory'; $iterator = new RecursiveIteratorIterator( new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::SKIP_DOTS) ); foreach($iterator as $it) { if (!method_exists($iterator, 'getSubPathName')) { throw new \LogicException('This should never happen'); } echo $iterator->getSubPathName(). PHP_EOL; } Expected result: ---------------- subdirectory/file2 subdirectory/file1 Actual result: -------------- subdirectory/file2 pf��/file1 PHP Fatal error: Couldn't execute method RecursiveDirectoryIterator::next in Unknown on line 0 PHP Stack trace: PHP 1. {main}() path/to/file/iterator.php:0 -- Edit bug report at https://bugs.php.net/bug.php?id=76901&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76901&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76901&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76901&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76901&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76901&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76901&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76901&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76901&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76901&r=support Expected behavior: https://bugs.php.net/fix.php?id=76901&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76901&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76901&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76901&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76901&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76901&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76901&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76901&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76901&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76901&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76901&r=mysqlcfg