Symfony2爬网程序-将UTF-8与XPATH一起使用 [英] Symfony2 Crawler - Use UTF-8 with XPATH

问题描述

我正在使用Symfony2 Crawler-捆绑软件来使用XPath。
除编码外，一切正常。

I am using Symfony2 Crawler - Bundle for using XPath. Everything works fine, except the encoding.

我想使用UTF-8编码，而Crawler却不使用它。我注意到，因为& nbsp; 被转换为& nbsp; ，这是一个已知问题：< a href = https://stackoverflow.com/questions/3597105/why-cant-i-get-rid-of-this-nbsp> UTF-8编码问题

I would like to use UTF-8 encoding and the Crawler is somehow not using it. I noticed that because th   are converted to  , which is a known issue: UTF-8 Encoding Issue

我的问题是：如何强制Symfony Crawler使用UTF-8编码？

My question is: How could I force the Symfony Crawler to use UTF-8 Encoding?

这是我正在使用的代码：

Here is the code I am using:

$dom_input = new \DOMDocument("1.0","UTF-8");
$dom_input->encoding = "UTF-8";
$dom_input->formatOutput = true;

$dom_input->loadHTMLFile($myFile);

$crawler = new Crawler($dom_input); 
$paragraphs = $crawler->filterXPath('descendant-or-self::p');

现在，当我在做

foreach($paragraphs as $paragraph) {
    var_dump($paragraph->nodeValue);
}

只要我有  在我的段落中，我得到& nbsp; 。

As soon as I have a   in my paragraph, I am getting  .

非常感谢

推荐答案

感谢@halfer，我找到了一种解决方法：

Thanks to @halfer, I found a workaround:

而不是使用

$crawler = new Crawler($dom_input);

我使用过：

$crawler = new Crawler();
$crawler->addHtmlContent(utf8_decode($dom_input->saveXML()));

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