#25762 [NEW]: array_merge returns NULL if one input array isn't set

From: flaimo at gmx dot net Operating system: win xp PHP version: 5CVS-2003-10-06 (dev) PHP Bug Type: Arrays related Bug description: array_merge returns NULL if one input array isn't set Description: ------------ if i use array_merge with two arrays, where one array-variable isn't set, the function returns NULL instead of the values of the other array. Reproduce code: --------------- <?php error_reporting(E_ALL & E_NOTICE); $array2 = array(1, 'a', TRUE); $array3 = array_merge($array2, $array1); // $array1 isn't set var_dump($array3); ?> Expected result: ---------------- works like this in PHP4: undefined variable array1; should return array(1, 'a', true); Actual result: -------------- behaves like this in PHP5 snap: undefined variable array1; returns NULL; -- Edit bug report at http://bugs.php.net/?id=25762&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=25762&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=25762&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=25762&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=25762&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=25762&r=needtrace Try newer version: http://bugs.php.net/fix.php?id=25762&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=25762&r=support Expected behavior: http://bugs.php.net/fix.php?id=25762&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=25762&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=25762&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=25762&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=25762&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=25762&r=dst IIS Stability: http://bugs.php.net/fix.php?id=25762&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=25762&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=25762&r=float