Bug #76511 [NEW]: array_merge_recursive() treats root indexed array keys differently than sub-arr

From: german dot drulyk at gmail dot com Operating system: https://3v4l.org/ PHP version: Irrelevant Package: Arrays related Bug Type: Bug Bug description:array_merge_recursive() treats root indexed array keys differently than sub-arr Description: ------------ I am not sure which behavior is the bug but the root array gets re-indexed to 0 and 1 and the array at position "k" goes from 4 to 5. array_merge() exhibits the same behavior with the root array. Test script: --------------- $arr1 = array( 4 => 'a', 'k' => array( 4 => 'a' ) ); $arr2 = array( 5 => 'b', 'k' => array( 5 => 'b' ) ); $arr3 = array_merge_recursive( $arr1, $arr2 ); var_dump( $arr3 ); Expected result: ---------------- array(3) { [0]=> // Should this be 4? string(1) "a" ["k"]=> array(2) { [4]=> // or should this be 0? string(1) "a" [5]=> // or should this be 1? string(1) "b" } [1]=> // Should this be 5? string(1) "b" } Actual result: -------------- array(3) { [0]=> string(1) "a" ["k"]=> array(2) { [4]=> string(1) "a" [5]=> string(1) "b" } [1]=> string(1) "b" } -- Edit bug report at https://bugs.php.net/bug.php?id=76511&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=76511&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=76511&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=76511&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=76511&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=76511&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=76511&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=76511&r=needscript Try newer version: https://bugs.php.net/fix.php?id=76511&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=76511&r=support Expected behavior: https://bugs.php.net/fix.php?id=76511&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=76511&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=76511&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=76511&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=76511&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=76511&r=dst IIS Stability: https://bugs.php.net/fix.php?id=76511&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=76511&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=76511&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=76511&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=76511&r=mysqlcfg