DOMDocument :: loadHTML():warning - htmlParseEntityRef:实体中没有名称

Question

我发现了几个类似的问题,但到目前为止,没有人能够帮助我.

我试图在HTML块中输出所有图像的'src',所以我正在使用DOMDocument().这种方法非常有效,但我在某些页面上收到警告,我无法弄清楚原因.有些帖子建议压制警告,但我更愿意找出警告产生的原因.

警告:DOMDocument :: loadHTML():htmlParseEntityRef:实体中没有名称,行:10

其中一个例子post->post_content就是产生错误 -

On Wednesday 21st November specialist rights of way solicitor Jonathan Cheal of Dyne Drewett will be speaking at the Annual Briefing for Rural Practice Surveyors and Agricultural Valuers in Petersfield.
<br>
Jonathan is one of many speakers during the day and he is specifically addressing issues of public rights of way and village greens.
<br>
Other speakers include:-
<br>
<ul>
<li>James Atrrill, Chairman of the Agricultural Valuers Associates of Hants, Wilts and Dorset;</li>
<li>Martin Lowry, Chairman of the RICS Countryside Policies Panel;</li>
<li>Angus Burnett, Director at Martin & Company;</li>
<li>Esther Smith, Partner at Thomas Eggar;</li>
<li>Jeremy Barrell, Barrell Tree Consultancy;</li>
<li>Robin Satow, Chairman of the RICS Surrey Local Association;</li>
<li>James Cooper, Stnsted Oark Foundation;</li>
<li>Fenella Collins, Head of Planning at the CLA; and</li>
<li>Tom Bodley, Partner at Batcheller Monkhouse</li>
</ul>

post->post_content如果有帮助的话,我可以发布更多包含内容的例子吗？

我暂时允许访问开发站点,因此您可以看到一些示例[注意 - 链接不再可访问,因为问题已得到解答] -

• 错误 - http://test.dynedrewett.com/specialist-solicitor-speaks-at-petersfield-update/
• 没有错误 - http://test.dynedrewett.com/restrictive-covenants-in-employment-contracts/

有关如何解决此问题的任何提示？谢谢.

$dom = new DOMDocument();
$dom->loadHTML(apply_filters('the_content', $post->post_content)); // Have tried stripping all tags but <img>, still generates warning
$nodes = $dom->getElementsByTagName('img');
foreach($nodes as $img) :
    $images[] = $img->getAttribute('src');
endforeach;

Answer 1

这个正确的答案来自@lonesomeday的评论.

我最好的猜测是在HTML中的某处有未转义的&符号(&).这将使解析器认为我们在实体引用中(例如©).当它到达时,它认为实体已经结束了.然后它实现它不符合实体的内容,因此它发出警告并以纯文本形式返回内容.

Answer 2

正如这里提到的那样

警告:DOMDocument :: loadHTML():htmlParseEntityRef:expecting';' 在实体中,

您可以使用 :

libxml_use_internal_errors(true);

见http://php.net/manual/en/function.libxml-use-internal-errors.php