Bug #52858 [NEW]: dom_import_simplexml() doesn't work on newly created SimpleXMLElement nodes

From: Date: Thu, 16 Sep 2010 03:51:23 +0000
Subject: Bug #52858 [NEW]: dom_import_simplexml() doesn't work on newly created SimpleXMLElement nodes
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-154412@lists.php.net to get a copy of this message 
From:             
Operating system: Windows 7
PHP version:      5.3.3
Package:          SimpleXML related
Bug Type:         Bug
Bug description:dom_import_simplexml() doesn't work on newly created SimpleXMLElement nodes

Description:
------------
The problem is readily apparent when you run the test script. When 
SimpleXMLElement dynamically creates a child element, and you directly call
a 
method on the child element, the $this context is apparently not a proper 
SimpleXMLElement, i.e. dom_import_simplexml() does not accept it as input.

class MyXML extends SimpleXMLElement {
    public function cdata($text) {
        dom_import_simplexml($this);
    }
}

$xml = new MyXML('<foo/>');
$xml->three->cdata('Three');

Test script:
---------------
<?php

class MyXML extends SimpleXMLElement {
    public function cdata($text) {
        $node = dom_import_simplexml($this);
        $owner = $node->ownerDocument;
        $node->appendChild($owner->createCDATASection($text));
        return $this;
    }
}

$xml = new MyXML('<foo/>');

// works
$xml->one = 'One';

// also works
$xml->two = '';
$xml->two->cdata('Two');

// doesn't work
$xml->three->cdata('Three');

print $xml->asXML();

Expected result:
----------------
<?xml version="1.0"?>
<foo><one>One</one><two><![CDATA[Two]]></two><three><![CDATA[Three]]></three></foo
>

Actual result:
--------------
Warning: dom_import_simplexml(): Invalid Nodetype to import in 
C:\WWW\Work\WC\www\dom.php on line 5

Notice: Trying to get property of non-object in C:\WWW\Work\WC\www\dom.php
on line 
6

Fatal error: Call to a member function appendChild() on a non-object in 
C:\WWW\Work\WC\www\dom.php on line 7

-- 
Edit bug report at http://bugs.php.net/bug.php?id=52858&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=52858&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=52858&r=trysnapshot53
Try a snapshot (trunk):              http://bugs.php.net/fix.php?id=52858&r=trysnapshottrunk
Fixed in SVN:                        http://bugs.php.net/fix.php?id=52858&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=52858&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=52858&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=52858&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=52858&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=52858&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=52858&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=52858&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=52858&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=52858&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=52858&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=52858&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=52858&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=52858&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=52858&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=52858&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=52858&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=52858&r=mysqlcfg

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