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

ID: 48205 Updated by: colder@php.net Reported By: sean at practicalweb dot co dot uk -Status: Verified +Status: Bogus Bug Type: SPL related Operating System: * PHP Version: 5.*, 6CVS (2009-05-09) New Comment: That's expected, callGetChildren will call RecursiveArrayIterator::getChildren when the current element is an integer. getChildren will then instantiate an ArrayIterator object, and pass the current element as argument, resulting in an exception since it's not an array or an object. Previous Comments: ------------------------------------------------------------------------ [2009-05-09 19:18:42] jani@php.net Please, when you do testing, test with PHP_5_2 also and HEAD. And set the version string like I did now in case the bug exists in all branches.. ------------------------------------------------------------------------ [2009-05-09 13:52:57] sean at practicalweb dot co dot uk 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 this bug report at http://bugs.php.net/?id=48205&edit=1