Bug #76931 [NEW]: foreach by reference copies last array element from second-last

From: kellnerdenes at gmail dot com Operating system: Win64 PHP version: 7.1.22 Package: *General Issues Bug Type: Bug Bug description:foreach by reference copies last array element from second-last Description: ------------ When looping along an array twice, first by reference, then by just normal value, the last element gets affected (gets the value of the second-last). So while it should display "first second third fourth", it will give "first second third third" instead. Commenting any of the foreaches or changing their order makes the problem disappear. I've seen similar reports but I think this one is clearly a bug while others seem to be unsure. Test script: --------------- $a = explode("\n","first\nsecond\nthird\nfourth"); foreach($a as &$x); foreach($a as $x); print_r($a); Expected result: ---------------- Array ( [0] => first [1] => second [2] => third [3] => fourth ) Actual result: -------------- Array ( [0] => first [1] => second [2] => third [3] => third ) -- Edit bug report at https://bugs.php.net/bug.php?id=76931&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76931&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76931&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76931&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76931&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76931&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76931&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76931&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76931&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76931&r=support Expected behavior: https://bugs.php.net/fix.php?id=76931&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76931&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76931&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76931&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76931&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76931&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76931&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76931&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76931&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76931&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76931&r=mysqlcfg