#46517 [Opn]: SimpleXML inconsistent behaviour with multiple XML nodes
| From: | jani@php.net | Date: | Tue, 11 Nov 2008 11:15:52 +0000 |
| Subject: | #46517 [Opn]: SimpleXML inconsistent behaviour with multiple XML nodes | ||
| References: | 1 | Groups: | php.doc.bugs |
| Request: | Send a blank email to doc-bugs+get-1484@lists.php.net to get a copy of this message | ||
ID: 46517
Updated by: jani@php.net
Reported By: sites at hubmed dot org
Status: Open
-Bug Type: SimpleXML related
+Bug Type: Documentation problem
Operating System: *
PHP Version: 5CVS, 6CVS (2008-11-11)
New Comment:
This explains what happens quite good:
http://vega.rd.no/article/simplexml-not-that-simple
Documentation is a bit vague about this though. Reclassified.
Previous Comments:
------------------------------------------------------------------------
[2008-11-07 16:03:21] sites at hubmed dot org
Actually, it seems that using foreach($xml->item) works the same
whether there's one item or multiple, so it's possible to work around
this using the following:
==========
$items = array();
foreach ($xml->item as $item)
$items[] = $item;
==========
That seems to always produce an array of the appropriate objects.
------------------------------------------------------------------------
[2008-11-07 15:30:19] sites at hubmed dot org
Description:
------------
This is a duplicate of bug 45023, which is marked as bogus but needs
reopening.
I'm seeing the same problem with the latest CVS version:
PHP 5.2.7RC2-dev (cli) (built: Nov 7 2008 15:02:08)
Mac OS 10.5.5
libxml2 2.6.30
At the moment, it's not possible to check whether a SimpleXML element
is an array or an object and iterate appropriately (as foreach() will
iterate over both an array and an object).
Reproduce code:
---------------
$xml =
simplexml_load_string('<root><item>a</item><item>b</item></root>');
print_r($xml);
foreach ($xml->item as $item)
print "\n" . 'Item: ' . (string) $item;
print "\n";
print'Type: ' . gettype($xml->item);
print "\n";
print is_array($xml->item) ? 'Is an array' : 'Not an array';
print "\n";
print_r($xml->item);
print_r($xml->item[1]);
Expected result:
----------------
gettype($xml->item) should return 'array', and is_array($xml->item)
should return true.
$xml->item should retrieve the whole array, not just the first item.
Actual result:
--------------
SimpleXMLElement Object
(
[item] => Array
(
[0] => a
[1] => b
)
)
Item: a
Item: b
Type: object
Not an array
SimpleXMLElement Object
(
[0] => a
)
SimpleXMLElement Object
(
[0] => b
)
------------------------------------------------------------------------
--
Edit this bug report at http://bugs.php.net/?id=46517&edit=1