Bug #71905 [NEW]: invalid switch case is returning valid

From: pat at breakfree dot com Operating system: Ubuntu 14.04 PHP version: 5.5.33 Package: *Programming Data Structures Bug Type: Bug Bug description:invalid switch case is returning valid Description: ------------ A false switch case is returning valid. Perhaps related to key index returned from stat()? PHP 5.5.9-1ubuntu4.14 (cli) (built: Oct 28 2015 01:34:46) Copyright (c) 1997-2014 The PHP Group Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies with Zend OPcache v7.0.3, Copyright (c) 1999-2014, by Zend Technologies Test script: --------------- <?php $s = stat('/tmp'); /* * I was interested in data from a few keys. However I found the 0/dev key is always resulting as a true case. */ $x = 0; foreach($s as $k => $v) { switch($k) { case 'this_does_not_exist_and_should_never_occur': echo 'Yet this case occurs: ' . $k . ', ' . $v . "\n"; $x++; break; default: break; } } echo "x=" . $x . "\n"; ?> Expected result: ---------------- x=0 Actual result: -------------- Yet this case occurs: 0, 64769 x=1 -- Edit bug report at https://bugs.php.net/bug.php?id=71905&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71905&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71905&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71905&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71905&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71905&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71905&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71905&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71905&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71905&r=support Expected behavior: https://bugs.php.net/fix.php?id=71905&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71905&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71905&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71905&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71905&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71905&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71905&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71905&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71905&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71905&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71905&r=mysqlcfg