Re: Iterators - seg faults again

On Mon, 12 Feb 2007 20:33:08 +0100, Jochem Maas <jochem@iamjochem.com> wrote:

how should we know with out seeing the iterator_to_array() definition? iterator_to_array() function is from php.

See http://de2.php.net/manual/en/function.iterator-to-array.php Here is another testcase. Why is this happening? Can you confirm this? What has to be done different? If you don't get these results (sef faults (I still want to get 2,3,4,5,6) would you mind telling me which version of php you are using? The file is t.php and its appended at the bottom (cat t.php) Thanks in advance Marc marc@localhost /tmp $ php t.php ====================== tescase is !!0!! ====================== are the following two results the same? 1 :array(2) { [0]=> int(5) [1]=> int(6) } 2 :current element in my_iterator_to_arrayArray current element in my_iterator_to_array2 current element in my_iterator_to_array3 current element in my_iterator_to_array4 current element in my_iterator_to_array5 current element in my_iterator_to_array6 array(6) { [0]=> array(3) {

	    [0]=>
	    Segmentation fault

marc@localhost /tmp $ php t.php ====================== tescase is !!1!! ====================== are the following two results the same? 1 :array(2) { [0]=> int(5) [1]=> int(6) } 2 : foreach does print what I want (23456), why ? 2 3 4 5 6 running for each the second time results in segfault again. Why ? Segmentation fault marc@localhost /tmp $ php -v PHP 5.1.6-pl6-gentoo (cli) (built: Feb 11 2007 02:37:11) Copyright (c) 1997-2006 The PHP Group Zend Engine v2.1.0, Copyright (c) 1998-2006 Zend Technologies marc@localhost /tmp $ cat t.php <?php $testcase = 1; echo " ======================\n"; echo " tescase is !!$testcase!!\n"; echo " ======================\n"; function A() { $a = func_get_args(); return new RecursiveArrayIterator(array(func_get_args())); } function my_iterator_to_array($it) { echo $it instanceof IteratorAggregate; // doesn't output anything so result is false. So I don't have to try calling getIterator manually $res = array(); while ($it->valid()){

	    echo "current element in my_iterator_to_array", $it->current(),"\n";
	    $res[] = $it->current();
	    $it->next();

} return $res; } echo "are the following two results the same?\n"; echo "1 :"; var_dump(iterator_to_array(new RecursiveIteratorIterator( A (A(2) , A (3,4), A(5,6))))); echo "2 :"; if ($testcase == 0) var_dump(my_iterator_to_array(new RecursiveIteratorIterator( A (A(2) , A (3,4), A(5,6))))); $ri = new RecursiveIteratorIterator( A (A(2) , A (3,4), A(5,6))); echo "\n\nforeach does print what I want (23456), why ?\n"; foreach( $ri as $v) echo "$v\n"; // why does the second foreach cause a segfault here? echo "\n\nrunning for each the second time results in segfault again. Why ?\n"; foreach( $ri as $v) echo "$v\n"; ?>