Bug #70943 [NEW]: fopen() can't open a file if path is 259 characters long

From: emanuele at fondani dot it Operating system: Windows 10 PHP version: 5.6.15 Package: Filesystem function related Bug Type: Bug Bug description:fopen() can't open a file if path is 259 characters long Description: ------------ fopen() function cannot access files whose path is more than 258 characters long. Test script: --------------- <?php // Generates a sample file whose path is exactly 259 characters long $testFile = __DIR__."\\".str_repeat("a", 254 - strlen(__DIR__)).".dat"; echo "Generating a file with a path length of ".strlen($testFile)." characters...\r\n"; touch($testFile); echo "Opening file... "; if ($fp = fopen($testFile, "r")) { fclose($fp); echo "OK"; } Expected result: ---------------- Generating a file with a path length of 259 characters... Opening file... OK Actual result: -------------- Generating a file with a path length of 259 characters... Opening file... Warning: fopen(S:\Emanuele\Temp\aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.dat): failed to open stream: Invalid argument in test.php on line 8 -- Edit bug report at https://bugs.php.net/bug.php?id=70943&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70943&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70943&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70943&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70943&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70943&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70943&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70943&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70943&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70943&r=support Expected behavior: https://bugs.php.net/fix.php?id=70943&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70943&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70943&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70943&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70943&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70943&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70943&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70943&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70943&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70943&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70943&r=mysqlcfg