--TEST-- Bug #54291 (Crash iterating DirectoryIterator for dir name starting with \0) --FILE-- <?php $dir = new DirectoryIterator("\x00/abc"); $dir->isFile(); --EXPECTF-- Fatal error: Uncaught UnexpectedValueException: Failed to open directory "" in %s:%d Stack trace: #0 %s(%d): DirectoryIterator->__construct('\x00/abc') #1 {main} thrown in %s on line %d