Bug #54143 [NEW]: array_merge returns NULL if a parameter is NULL

From: Operating system: Ubuntu 9.3 PHP version: 5.3SVN-2011-03-02 (SVN) Package: Arrays related Bug Type: Bug Bug description:array_merge returns NULL if a parameter is NULL Description: ------------ $userdata = array_merge($user, $userdata); If $user is NULL the result is NULL instead of $userdata. Test script: --------------- $userdata = array("Hi", "Jim"); $userdata = array_merge(NULL, $userdata); Expected result: ---------------- Get back $userdata = array("Hi", "Jim") Actual result: -------------- NULL -- Edit bug report at http://bugs.php.net/bug.php?id=54143&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54143&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54143&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54143&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54143&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54143&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54143&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54143&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54143&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54143&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54143&r=support Expected behavior: http://bugs.php.net/fix.php?id=54143&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54143&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54143&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54143&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54143&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54143&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54143&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54143&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54143&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54143&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54143&r=mysqlcfg