1--TEST-- 2Bug #54291 (Crash iterating DirectoryIterator for dir name starting with \0) 3--FILE-- 4<?php 5$dir = new DirectoryIterator("\x00/abc"); 6$dir->isFile(); 7--EXPECTF-- 8Fatal error: Uncaught UnexpectedValueException: Failed to open directory "" in %s:%d 9Stack trace: 10#0 %s(%d): DirectoryIterator->__construct('\x00/abc') 11#1 {main} 12 thrown in %s on line %d 13 14