文档末尾的其他内容PHP和XML [英] Extra content at the end of the document PHP and XML

问题描述

当我尝试使用PHP生成XML文件时遇到一个奇怪的问题.问题在于，在源代码的末尾会出现一个奇怪的问号.我收到错误消息:文档末尾的其他内容"

I having a strange problem when I'm trying to produce an XML file with PHP. The problems is that, a strange question mark appears at the end of the source code. And I get the error: "Extra content at the end of the document"

我正在运行此脚本:

<?php
header("Content-Type: application/xml");
echo "<?xml version=\"1.0\"?>";
?>

<Module>
      <ModulePrefs title="Ngram Extractor"
        author="interedition team"
       description="Ngram Extractor"
        scrolling="true"/>
        <Content type="html">
        Test
        </Content>
</Module>​

打开这是一个浏览器时，出现状态错误，并且源代码如下所示.请注意最后的奇怪问号.

When I open this is a browser, I get the state error and the source code looks like this. Notice the strange question mark at the end.

 <?xml version="1.0"?>
<Module>
      <ModulePrefs title="Ngram Extractor"
        author="interedition team"
       description="Ngram Extractor"
        scrolling="true"/>
        <Content type="html">
        Test
        </Content>
</Module>?

请帮助.

推荐答案

文件末尾有零宽度空格字符-UTF-8代码E2 80 8B.它放置在</Module>之后.以十六进制模式查看您的文件. 此多余的字符会阻止您的浏览器将其识别为有效的XML，并且-根据使用的浏览器-显示为问号或根本不显示.

You have a zero width space character at the end of your file - UTF-8 code E2 80 8B. It is placed right after </Module>. Have a look at your file in hex mode. This extra character prevents your browser from recognizing this as valid XML and - depending on the browser in use - shows up as a question mark or does not show up at all.

删除多余的字符，您会没事的.

Remove that extra character and you will be fine.

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