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Bug #42391 DOM ignores several valid dtd entities.
Submitted: 2007-08-22 21:45 UTC Modified: 2007-08-23 18:49 UTC
Votes:1
Avg. Score:5.0 ± 0.0
Reproduced:1 of 1 (100.0%)
Same Version:1 (100.0%)
Same OS:0 (0.0%)
From: linus dot martensson at elplan-gm dot se Assigned:
Status: Not a bug Package: DOM XML related
PHP Version: 5.2.3 OS: Linux - Ubuntu Feisty Fawn
Private report: No CVE-ID: None
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 [2007-08-22 21:45 UTC] linus dot martensson at elplan-gm dot se 
Description:
------------
The DOM parser fails to parse SEVERAL valid xhtml entities, such as » and ⇒, even though both are specified in http://www.w3.org/TR/xhtml1/DTD/xhtml-lat1.ent and http://www.w3.org/TR/xhtml1/DTD/xhtml-symbol.ent.
These two files (among others) are referred to by the specified doctype definition, xhtml1-strict.dtd.
The parser is obviously not taking all valid xhtml entities into account, which is a serious problem.

Reproduce code:
---------------
<?php 
$d = new DOMDocument();
if(!$d->loadXML('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html><head></head><body>&#8658;&rArr;</body></html>')) var_dump(libxml_get_last_error());

Expected result:
----------------
No output, should correctly parse the document and store the two entities in the DOMDocument.

Actual result:
--------------
When the libXml error is retrieved, this is the apparent error:
Line 1: Entity 'rArr' not defined. The parse is aborted.

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 [2007-08-22 22:01 UTC] linus dot martensson at elplan-gm dot se 
Retouched the summary.
 [2007-08-22 22:49 UTC] rrichards@php.net 
Thank you for taking the time to write to us, but this is not
a bug. Please double-check the documentation available at
http://www.php.net/manual/ and the instructions on how to report
a bug at http://bugs.php.net/how-to-report.php

You need to pass the LIBXML_DTDLOAD option to loadXML as external subsets are not loaded by default
 [2007-08-23 18:49 UTC] linus dot martensson at elplan-gm dot se 
Then, may I recommend clarifying the documentation? The &nbsp; entity was, for example, handled without that extra option, and it is in the SAME file as one of the entities that fail to load! *This* is why I found the behaviour strange and decided to report the bug. Would you please clarify such behaviour?


Linus
 
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