#34589 [NEW]: Strange effects of file_exists() etc. caching

From: pjf at asn dot pl Operating system: GNU PHP version: 5.0.5 PHP Bug Type: *Directory/Filesystem functions Bug description: Strange effects of file_exists() etc. caching Description: ------------ I find caching of file_exists() and similar functions causing strange results - as presented by attached code, it might cause unexistent files to... "exist" :). Reproduce code: --------------- [pjf@boogoo file_exists]$ ls file_exists.php [pjf@boogoo file_exists]$ cat file_exists.php <?php touch("foobar"); echo file_exists("foobar") . "\n"; mkdir("foodir"); echo file_exists("foobar") . "\n"; ?> Expected result: ---------------- [pjf@boogoo file_exists]$ php file_exists.php 1 Actual result: -------------- [pjf@boogoo file_exists]$ php file_exists.php 1 1 -- Edit bug report at http://bugs.php.net/?id=34589&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=34589&r=trysnapshot4 Try a CVS snapshot (php5.0): http://bugs.php.net/fix.php?id=34589&r=trysnapshot50 Try a CVS snapshot (php5.1): http://bugs.php.net/fix.php?id=34589&r=trysnapshot51 Fixed in CVS: http://bugs.php.net/fix.php?id=34589&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=34589&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=34589&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=34589&r=needscript Try newer version: http://bugs.php.net/fix.php?id=34589&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=34589&r=support Expected behavior: http://bugs.php.net/fix.php?id=34589&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=34589&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=34589&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=34589&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=34589&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=34589&r=dst IIS Stability: http://bugs.php.net/fix.php?id=34589&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=34589&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=34589&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=34589&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=34589&r=mysqlcfg