PHP如何使用“;(PHP How to use quot; entities in XML with DOMdocument)

 我正在修改由其他库生成的XML文件的内容。 我正在使用PHP（5.3.10）进行一些DOM修改并重新插入替换节点。 
 
 我正在使用的XML数据有&quot 在我进行操作之前的元素，并且当我完成修改时，我想按照http://www.w3.org/TR/REC-xml/保留这些元素。 
 
 但是我遇到了PHP改变"问题" 元素。 看看我的例子。 
 
$temp = 'Hello "XML".';
$doc = new DOMDocument('1.0', 'utf-8');
$newelement = $doc->createElement('description', $temp);
$doc->appendChild($newelement);
echo $doc->saveXML() . PHP_EOL; // shows " instead of element
$node = $doc->getElementsByTagName('description')->item(0);
echo $node->nodeValue . PHP_EOL; // also shows "
 
 产量 
 
<?xml version="1.0" encoding="utf-8"?> 
<description>Hello "XML".</description>

Hello "XML".
 
 这是PHP错误还是我做错了什么？ 我希望没有必要在每个char位置使用createEntityReference。 
 
 类似问题： PHP XML实体编码问题 
 
 
 编辑：作为一个示例，显示saveXML不应该转换为&quot; 实体就像&amp; 行为正常。 这个$ temp字符串应该输出，因为它最初是在saveXML（）期间与实体一起输入的。 
 
$temp = 'Hello &quot;XML&quot; &amp;.';
$doc = new DOMDocument('1.0', 'utf-8');
$newelement = $doc->createElement('description', $temp);
$doc->appendChild($newelement);
echo $doc->saveXML() . PHP_EOL; // shows " instead of element like &amp;
$node = $doc->getElementsByTagName('description')->item(0);
echo $node->nodeValue . PHP_EOL; // also shows " &
 
 产量 
 
<?xml version="1.0" encoding="utf-8"?>
<description>Hello "XML" &amp;.</description>

Hello "XML" &.

I am working on modifying the contents of an XML file generated by some other library. I'm making some DOM modifications with PHP (5.3.10) and reinserting a replacement node.
 
The XML data I'm working with has &quot; elements before I do the manipulation and I want to keep those elements as per http://www.w3.org/TR/REC-xml/ when I'm done with the modifications.
 
However I'm having problems with PHP changing the &quot; elements. See my example.
 
$temp = 'Hello &quot;XML&quot;.';
$doc = new DOMDocument('1.0', 'utf-8');
$newelement = $doc->createElement('description', $temp);
$doc->appendChild($newelement);
echo $doc->saveXML() . PHP_EOL; // shows " instead of element
$node = $doc->getElementsByTagName('description')->item(0);
echo $node->nodeValue . PHP_EOL; // also shows "
 
Output
 
<?xml version="1.0" encoding="utf-8"?> 
<description>Hello "XML".</description>

Hello "XML".
 
Is this a PHP error or am I doing something wrong? I hope it isn't necessary to use createEntityReference in every char location.
 
Similar Question: PHP XML Entity Encoding issue
 
 
EDIT: As an example to show saveXML should not be converting the &quot; entities just like the &amp; which behaves properly. This $temp string should really be output as it is initially entered with the entities during saveXML().
 
$temp = 'Hello &quot;XML&quot; &amp;.';
$doc = new DOMDocument('1.0', 'utf-8');
$newelement = $doc->createElement('description', $temp);
$doc->appendChild($newelement);
echo $doc->saveXML() . PHP_EOL; // shows " instead of element like &amp;
$node = $doc->getElementsByTagName('description')->item(0);
echo $node->nodeValue . PHP_EOL; // also shows " &
 
Output
 
<?xml version="1.0" encoding="utf-8"?>
<description>Hello "XML" &amp;.</description>

Hello "XML" &.

原文：https://stackoverflow.com/questions/28399653