ID:               43778
 Comment by:       hubert dot roksor at gmail dot com
 Reported By:      jdolecek at netBSD dot org
 Status:           Open
 Bug Type:         SimpleXML related
 Operating System: Windows 2000
 PHP Version:      5.2.5
 New Comment:

Actually, this doesn't seem to be a regression but rather the intended
behaviour, as per this commit:
http://marc.info/?l=php-cvs&m=118352557820634&w=2

As per PHP's manual, empty() "[determines] whether a variable is
considered to be empty". $xml->items->item will return the first "item"
node, and since that node has no children and no content it is
considered empty. If you only want to test whether or not an element is
present, without inspecting its content, then you should use isset()
instead.

Hope that makes sense to you. Note: of course, this is only my personal
interpretation, nothing official.


Previous Comments:
------------------------------------------------------------------------

[2008-01-07 17:22:11] jdolecek at netBSD dot org

Description:
------------
It seems empty() on simplexml 'array' elements doesn't work same way in
5.2.5 as in 5.2.3. In 5.2.5, empty() returns true even through the
elements are actually present. Same code run under 5.2.3 works
correctly, i.e. returning true only if the element is not present.

Workaround is replace (!empty(...)) condition with isset() and test for
count(), but this is inconvenient and breaks backwards compatibility.

Reproduce code:
---------------
<?php

$str = '<?xml version="1.0" encoding="WINDOWS-1250" ?>

<config>

        <items>
                <item command="overview"/>
                <item command="deals"/>
                <item command="regions"/>
                <item command="estimations"/>
                <item command="reports"/>
                <item command="import"/>
        </items>

</config>
';

$xml = simplexml_load_string($str);

echo (empty($xml->items->item) ? "EMPTY" : "full")."\n";
echo count($xml->items->item) ."\n";


Expected result:
----------------
full
6

Actual result:
--------------
EMPTY
6


------------------------------------------------------------------------


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