Bug #68457 [NEW]: Reference by pointer inaccurate in foreach

From: mberding at dtoolbox dot com Operating system: CentOS PHP version: 5.4.35 Package: Variables related Bug Type: Bug Bug description:Reference by pointer inaccurate in foreach Description: ------------ In the code below the last element in the $a array is replaced with a copy of the second-to-last element. Tested and confirmed in PHP versions: 5.3.3, 5.4.34, 5.6.2 Tested OS: CentOS 6.5, 7 Test script: --------------- //Test Script: //------------ $a = array(1,2,3); foreach($a AS &$y) { $y = $y*2; } foreach($a AS $y) { echo $y.', '; } Expected result: ---------------- 2,4,6, Actual result: -------------- 2,4,4, -- Edit bug report at https://bugs.php.net/bug.php?id=68457&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=68457&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=68457&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=68457&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=68457&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=68457&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=68457&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=68457&r=needscript Try newer version: https://bugs.php.net/fix.php?id=68457&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=68457&r=support Expected behavior: https://bugs.php.net/fix.php?id=68457&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=68457&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=68457&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=68457&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=68457&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=68457&r=dst IIS Stability: https://bugs.php.net/fix.php?id=68457&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=68457&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=68457&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=68457&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=68457&r=mysqlcfg