#48854 [NEW]: array_merge_recursive modifies arrays after first one

From: stakadush at yahoo dot com Operating system: Ubuntu 9.04 PHP version: 5.3.0 PHP Bug Type: Scripting Engine problem Bug description: array_merge_recursive modifies arrays after first one Description: ------------ array_merge_recursive seems to modify the arrays which are passed, except for the first one. it turns all first-level non-array elements, into arrays. the code will explain it better :) Reproduce code: --------------- $array1 = array( 'friends' => 5, 'children' => array( 'dogs' => 0, ), ); $array2 = array( 'friends' => 10, 'children' => array( 'cats' => 5, ), ); echo sprintf("Second array before: %s\n", print_r($array2, true)); $merged = array_merge_recursive($array1, $array2); echo sprintf("Second array after: %s\n", print_r($array2, true)); Expected result: ---------------- to have $array2 untouched after array_merge_recursive: Array ( [friends] => 10 [children] => Array ( [cats] => 5 ) ) Actual result: -------------- $array2 gets modified after array_merge_recursive, and every first- level no-array element, gets turned into an array (in this case 'friends')... Array ( [friends] => Array ( [0] => 10 ) [children] => Array ( [cats] => 5 ) ) -- Edit bug report at http://bugs.php.net/?id=48854&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48854&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48854&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48854&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48854&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48854&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48854&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48854&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48854&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48854&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48854&r=support Expected behavior: http://bugs.php.net/fix.php?id=48854&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48854&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48854&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48854&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48854&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48854&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48854&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48854&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48854&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48854&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48854&r=mysqlcfg