Bug #54288 [NEW]: array_unshift and multidimension arrays bug

From: Operating system: Ubuntu 10.10 PHP version: 5.3SVN-2011-03-17 (SVN) Package: Arrays related Bug Type: Bug Bug description:array_unshift and multidimension arrays bug Description: ------------ When using array_unshift() on multidimension arrays there is a bug when index in array does not exists. When you have array with arrays inside like this: $arr = array( array('ddddd'), array('eeee'), array('ffff'), array('gggg'), ); and you use: array_unshift($arr[4], 4); this function not only show you warning message, but also add one element with null value to the end (!) of $arr array. It should not be working like that. It should show a warning and do nothing. My version of PHP: piotrekkr@piotrekkr-desktop:/var/www$ php -v PHP 5.3.3-1ubuntu9.3 with Suhosin-Patch (cli) (built: Jan 12 2011 16:07:38) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies OS: Ubuntu 10.10 Test script: --------------- <?php $arr = array( array('ddddd'), array('eeee'), array('ffff'), array('gggg'), ); array_unshift($arr[4], 4); print_r($arr); Expected result: ---------------- PHP Warning: array_unshift() expects parameter 1 to be array, null given in /var/www/unshift_test.php on line 9 Array ( [0] => Array ( [0] => ddddd ) [1] => Array ( [0] => eeee ) [2] => Array ( [0] => ffff ) [3] => Array ( [0] => gggg ) ) Actual result: -------------- PHP Warning: array_unshift() expects parameter 1 to be array, null given in /var/www/unshift_test.php on line 9 Array ( [0] => Array ( [0] => ddddd ) [1] => Array ( [0] => eeee ) [2] => Array ( [0] => ffff ) [3] => Array ( [0] => gggg ) [4] => ) -- Edit bug report at http://bugs.php.net/bug.php?id=54288&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54288&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54288&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54288&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54288&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54288&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54288&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54288&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54288&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54288&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54288&r=support Expected behavior: http://bugs.php.net/fix.php?id=54288&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54288&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54288&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54288&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54288&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54288&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54288&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54288&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54288&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54288&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54288&r=mysqlcfg