Bug #70814 [NEW]: fopen('file', 'w+') breaks subsequent file_get_contents calls

From: pedronaroga at gmail dot com Operating system: Ubuntu 15.10 PHP version: 7.0.0RC6 Package: Filesystem function related Bug Type: Bug Bug description:fopen('file', 'w+') breaks subsequent file_get_contents calls Description: ------------ Using the following snippet, I get the correct response: var_dump(file_get_contents('my_local_file')); //Prints file contents fopen('my_local_file', 'r+'); var_dump(file_get_contents('my_local_file')); //Prints file contents again However, changing the mode in fopen to 'w+', causes weird behaviour: var_dump(file_get_contents('my_local_file')); //Prints file contents fopen('my_local_file', 'w+'); var_dump(file_get_contents('my_local_file')); //Prints an empty string Error is reproductible in PHP 5.6. Test script: --------------- <?php var_dump(file_get_contents('my_local_file')); //Prints file contents fopen('my_local_file', 'w+'); var_dump(file_get_contents('my_local_file')); //Prints an empty string -- Edit bug report at https://bugs.php.net/bug.php?id=70814&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=70814&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=70814&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=70814&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=70814&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=70814&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=70814&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=70814&r=needscript Try newer version: https://bugs.php.net/fix.php?id=70814&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=70814&r=support Expected behavior: https://bugs.php.net/fix.php?id=70814&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=70814&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=70814&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=70814&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70814&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=70814&r=dst IIS Stability: https://bugs.php.net/fix.php?id=70814&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=70814&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=70814&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=70814&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=70814&r=mysqlcfg