Bug #71010 [NEW]: Result of the program is not correct while the variable assignment by reference

From: miaojuanfeng at qq dot com Operating system: linux PHP version: 5.6Git-2015-12-01 (Git) Package: Scripting Engine problem Bug Type: Bug Bug description:Result of the program is not correct while the variable assignment by reference Description: ------------ Hi, I'm chinese, I do my best to let each other understand. :) result of the program is not correct while the variable assignment by reference. I have fixed the bug and pull request at github. Test script: --------------- $a = 1; $b = &$a; $c = (++$a)+(++$a)+(++$a); echo $c; Expected result: ---------------- 9 Actual result: -------------- 10 -- Edit bug report at https://bugs.php.net/bug.php?id=71010&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=71010&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=71010&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=71010&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=71010&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=71010&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=71010&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=71010&r=needscript Try newer version: https://bugs.php.net/fix.php?id=71010&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=71010&r=support Expected behavior: https://bugs.php.net/fix.php?id=71010&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=71010&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=71010&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=71010&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=71010&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=71010&r=dst IIS Stability: https://bugs.php.net/fix.php?id=71010&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=71010&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=71010&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=71010&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=71010&r=mysqlcfg