ID: 44648
Updated by: [EMAIL PROTECTED]
Reported By: [EMAIL PROTECTED]
Status: Open
Bug Type: DOM XML related
Operating System: Windows Vista
PHP Version: 5.2.5
-Assigned To:
+Assigned To: rrichards
New Comment:
assign to self.
The strictness is dependent upon the DOM specs and setAttribute should
be throwing an exception in that case. While I am going to go through
and check other methods, let me know if you come across any others that
are not validating names correctly.
Previous Comments:
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[2008-04-05 21:55:06] [EMAIL PROTECTED]
Description:
------------
libxml2 is fairly lenient when it comes to what it allows to go into
its nodes; you can set attributes and tags with illegal characters in
them and it won't complain. The burden is on the userland code to
perform an appropriate check with the xmlValidate*() functions.
PHP's DOM implementation is extremely spotty when it comes to these
checks, which allows for some broken XML to easily be generated. For
example,
$d = new DOMDocument();
$d->appendChild($n = $d->createElement('a'));
$n->setAttribute('"@', 'foo');
echo $d->saveXML();
outputs:
<?xml version="1.0"?>
<a "@="foo"/>
Which is clearly incorrect. However, if I attempt to
$d->createElement('a@');
DOM complains, because xmlValidateName was called on the element name.
Now, I actually don't mind the lack of checking; the DOM tree is useful
for things like HTML, where the rules are slightly different from XMLs;
an HTML tree can contain a "a@" node, although it would not be valid
HTML. (You can try it out for yourself on Firefox by putting that in a
document and then inspecting the DOM).
However, I want consistency, and I also want the ability to switch on
strict checking when I so desire (especially when I'm producing XML). So
I want all-or-nothing production checks in PHP DOM, adding another
property in DOMDocument (or maybe even a global libxml configuration
option) that specifies whether or not strict production checking should
be done.
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Edit this bug report at http://bugs.php.net/?id=44648&edit=1