PHP htmlentities并以xml格式保存数据 [英] PHP htmlentities and saving the data in xml format
问题描述
我正在尝试使用以下PHP脚本将一些数据保存到xml文件中:
Im trying to save some data into a xml file using the following PHP script:
<?php
$string = '<a href="google.com/maps">Go to google maps</a> and some special characters ë è & ä etc.';
$string = htmlentities($string, ENT_QUOTES, 'UTF-8');
$doc = new DOMDocument('1.0', 'UTF-8');
$doc->preserveWhiteSpace = false;
$doc->formatOutput = true;
$root = $doc->createElement('top');
$root = $doc->appendChild($root);
$title = $doc->createElement('title');
$title = $root->appendChild($title);
$id = $doc->createAttribute('id');
$id->value = '1';
$text = $title->appendChild($id);
$text = $doc->createTextNode($string);
$text = $title->appendChild($text);
$doc->save('data.xml');
echo 'data saved!';
?>
我正在使用htmlentities将所有字符串转换为html格式,如果我不这样做,则不会将特殊字符转换为html格式.这是输出:
I'm using htmlentities to translate all of the string into an html format, if I leave this out the special characters won't be translated to html format. this is the output:
<?xml version="1.0" encoding="UTF-8"?>
<top>
<title id="1">&lt;a href=&quot;google.com/maps&quot;&gt;Go to google maps&lt;/a&gt; and some special characters &euml; &egrave; &amp; &auml; etc.</title>
</top>
html标记的&"号得到一个双HTML代码:&lt;
,而&"号变为:&amp;
The ampersand of the html tags get a double html code: &lt;
and an ampersand becomes: &amp;
这是正常行为吗?或如何防止这种情况发生?看起来像是双重编码.
Is this normal behavior? Or how can I prevent this from happening? Looks like a double encoding.
推荐答案
尝试删除该行:
$string = htmlentities($string, ENT_QUOTES, 'UTF-8');
因为传递给createTextNode()的文本还是被转义了.
Because the text passed to createTextNode() is escaped anyway.
更新: 如果您要转义utf-8字符.您可以离开该行,然后尝试直接在createElement()中添加$ string.
Update: If you want the utf-8 characters to be escaped. You could leave that line and try to add the $string directly in createElement().
例如:
$title = $doc->createElement('title', $string);
$title = $root->appendChild($title);
在PHP 文档中,它说$ string不会被转义.我还没有尝试过,但是应该可以.
In PHP documentation it says that $string will not be escaped. I haven't tried it, but it should work.
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