Bug #78939 [NEW]: file_exists produces different results with TS and NTS builds

From: michael dot vorisek at email dot cz Operating system: Windows PHP version: 7.3.12 Package: *Directory/Filesystem functions Bug Type: Bug Bug description:file_exists produces different results with TS and NTS builds Description: ------------ After spending a lot of time why PHP app does work on one PC and not on another, comparing gigabytes of logs, I find very weird behaviour of core PHP file function. var_dump(file_exists('C:x.txt')); if the file "C:/x.txt" exists, PHP produces different results with TS and NTS builds on Windows if the path is without slash after "C:", i.e. - output for "C:/x.txt" is corrent and consitent across TS and NTS builds - output for "C:x.txt" differs across TS and NTS builds The path format without slash after "C:" is not supported in explorer.exe, so for me it seems that paths like "C:something" should be considered invalid and the TS build should be fixed to always return false. Note: other file functions are probably affected too. Test script: --------------- // 1. manually create any/empty file and save it under "C:/x.txt" // 2. run this code with PHP TS and PHP NTS var_dump(ZEND_THREAD_SAFE); var_dump(file_exists('C:/x.txt')); var_dump(file_exists('C:x.txt')); // 3. notice the different output of the 3rd line Expected result: ---------------- // expected output from PHP TS and NTS bool(true) OR bool(false) // dump of ZEND_THREAD_SAFE constant bool(true) bool(true) OR bool(false) // TBD, path without slash after "C:" - see desc., but output need to be consistent across TS and NTS PHP builds Actual result: -------------- // output from PHP TS bool(true) bool(true) bool(true) // output from PHP NTS bool(false) bool(true) bool(false) -- Edit bug report at https://bugs.php.net/bug.php?id=78939&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=78939&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=78939&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=78939&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=78939&r=needscript Try newer version: https://bugs.php.net/fix.php?id=78939&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=78939&r=support Expected behavior: https://bugs.php.net/fix.php?id=78939&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=78939&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=78939&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=78939&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=78939&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=78939&r=dst IIS Stability: https://bugs.php.net/fix.php?id=78939&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=78939&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=78939&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=78939&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=78939&r=mysqlcfg