#48205 [NEW]: RecursiveIteratorIterator->callGetChildren() raises InvalidArgumentException

From: sean at practicalweb dot co dot uk Operating system: Linux PHP version: 5.3CVS-2009-05-09 (snap) PHP Bug Type: SPL related Bug description: RecursiveIteratorIterator->callGetChildren() raises InvalidArgumentException Description: ------------ If the current element of a RecursiveIteratorIterator has no children then callGetChildren() causes an error message like Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Passed variable is not an array or object, using empty array instead' This is confusing because the PHP code does not pass an argument here. I think that either the method should return null when there are no children - or at least the error message could be clearer. This has been found as part of phptestfest 09 - an XFail test will be commited from PHPLondon My Apologies if this is expected behaviour, I realise the code is undocumented, but I wanted to commit a test to cover this and filing a bug seemed the best way to confirm one way or the other :-) Reproduce code: --------------- <?php $array = array(array(7,8,9),1,2,3,array(4,5,6)); $recursiveArrayIterator = new RecursiveArrayIterator($array); $test = new RecursiveIteratorIterator($recursiveArrayIterator); var_dump($test->current()); $test->next(); var_dump($test->current()); try { $output = $test->callGetChildren(); } catch (InvalidArgumentException $ilae){ $output = null; print "invalid argument exception\n"; } var_dump($output); ?> Expected result: ---------------- array(3) { [0]=> int(7) [1]=> int(8) [2]=> int(9) } int(7) NULL Actual result: -------------- array(3) { [0]=> int(7) [1]=> int(8) [2]=> int(9) } int(7) invalid argument exception NULL -- Edit bug report at http://bugs.php.net/?id=48205&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=48205&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=48205&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=48205&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=48205&r=fixedcvs Fixed in CVS and need be documented: http://bugs.php.net/fix.php?id=48205&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=48205&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=48205&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=48205&r=needscript Try newer version: http://bugs.php.net/fix.php?id=48205&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=48205&r=support Expected behavior: http://bugs.php.net/fix.php?id=48205&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=48205&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=48205&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=48205&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=48205&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=48205&r=dst IIS Stability: http://bugs.php.net/fix.php?id=48205&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=48205&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=48205&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=48205&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=48205&r=mysqlcfg