From: jazzslider at gmail dot com
Operating system: Linux
PHP version: 5.2.0
PHP Bug Type: Feature/Change Request
Bug description: Subclassed SimpleXMLElements with differently-subclassed
child nodes
Description:
------------
I often use SimpleXML to provide a hierarchical organizational view of
associated database records. For reference I have included some sample
XML in the source code field.
The Page element represents a record from a 'pages' table in the database;
likewise, each Comment element represents an associated record in the
'comments' table.
Sometimes, different types of data in my application require extra
extensions to the SimpleXMLElement. This helps me get extra metadata or
convenience features related to each content type. So, the Page object
might need to be of class "PageInstance", which is itself a subclass of
SimpleXMLElement.
However, I'd like it if the associated Comment records contained within
the PageInstance object could themselves be "CommentInstance" objects
(another subclass of SimpleXMLElement).
Reproduce code:
---------------
<?php
class PageInstance extends SimpleXMLElement { }
class CommentInstance extends SimpleXMLElement { }
$xml = '<Page><id>7</id><title>A Great Page</title><body>This is the body
text of a great
page.</body><Comment><page_id>7</page_id><user_id>12</user_id><body>Great
job making this
page!</body></Comment><Comment><page_id>7</page_id><user_id>15</user_id><body>I
think this page is overrated.</body></Comment></Page>';
$sxe = simplexml_load_string($xml, 'PageInstance');
// Additional code making it possible to assign different
// subclasses to children of $sxe (this is not currently
// possible)
echo get_class($sxe->Comment);
?>
Expected result:
----------------
(Note that the following result is desired, but given the way SimpleXML
currently works, it is not expected)
----------------------------------------------
CommentInstance
Actual result:
--------------
PageInstance
--
Edit bug report at http://bugs.php.net/?id=40388&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=40388&r=trysnapshot44
Try a CVS snapshot (PHP 5.2):
http://bugs.php.net/fix.php?id=40388&r=trysnapshot52
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=40388&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=40388&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=40388&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=40388&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=40388&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=40388&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=40388&r=support
Expected behavior: http://bugs.php.net/fix.php?id=40388&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=40388&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=40388&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=40388&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=40388&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=40388&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=40388&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=40388&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=40388&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=40388&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=40388&r=mysqlcfg
