Edit report at https://bugs.php.net/bug.php?id=38489&edit=1
ID: 38489
Comment by: hanskrentel at yahoo dot de
Reported by: mmcintyre at squiz dot net
Summary: DOMNodeList should implement Traversable
Status: Closed
Type: Feature/Change Request
Package: DOM XML related
Operating System: *
PHP Version: 5.1.5
Assigned To: jpauli
Block user comment: N
Private report: N
New Comment:
iterator_to_array() accepts any terversable, therefore there is no need to wrap
the DOMNodeList into an IteratorIterator first, it can be converted to array
*directly*
<?php
$xml = '<queries><query attr1="value"></query></queries>';
$doc = new DOMDocument;
$doc->loadXML($xml);
$queries = $doc->getElementsByTagName('queries');
$nodes = iterator_to_array($queries);
?>
The key used per each node is some kind of ID (positive, long integer) and it
seems to be unique. Using an array can be useful because a DOMNodeList
automatically re-orders if nodes therein are deleted. This is not the case with
the array (naturally).
Previous Comments:
------------------------------------------------------------------------
[2012-01-10 16:42:53] jpa...@php.net
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php
DomNodeListe implements Traversable. You can convert a Traversable object to an
Iterator using the IteratorIterator
class.
<?php
$xml = '<queries><query attr1="value"></query></queries>';
$doc = new DOMDocument;
$doc->loadXML($xml);
$queries = $doc->getElementsByTagName('queries');
$nodes = iterator_to_array(new IteratorIterator($queries));
?>
------------------------------------------------------------------------
[2007-01-17 15:11:55] jules_papillon_fh at yahoo dot de
This bug exists further reproducibly on PHP5.2
------------------------------------------------------------------------
[2007-01-17 15:09:11] jules_papillon_fh at yahoo dot de
Another Code to reproduce the Bug:
----------------------------------
$dom = new DOMDocument('1.0', 'ISO-8859-1');
$dom->load('file.xml');
$iterator = new RecursiveIteratorIterator($dom->childNodes,
RecursiveIteratorIterator::SELF_FIRST);
foreach($iterator as $name => $element) {
print $name . "\n";
}
Expected result:
----------------
A recursive List of all Elements
Actual result:
--------------
"Catchable fatal error: Argument 1 passed to
RecursiveIteratorIterator::__construct() must implement interface Traversable,
instance of DOMNodeList given, called in [
] and defined in [
]"
------------------------------------------------------------------------
[2006-08-18 06:37:22] mmcintyre at squiz dot net
Description:
------------
Currently, a DOMNodeList object can be traversed using a foreach loop, but it
cannot be converted to an array using iterator_to_array(), as it produces an
error "Warning: iterator_to_array() expects parameter 1 to be Traversable,
object given"
Reproduce code:
---------------
$xml = '<queries><query attr1="value"></query></queries>';
$doc = new DOMDocument;
$doc->loadXML($xml);
$queries = $doc->getElementsByTagName('queries');
$nodes = iterator_to_array($queries);
Expected result:
----------------
The nodes in the NodeList are returned as an array.
Actual result:
--------------
"Warning: iterator_to_array() expects parameter 1 to be Traversable, object
given"
------------------------------------------------------------------------
--
Edit this bug report at https://bugs.php.net/bug.php?id=38489&edit=1
