将PHP文件解析为XML文件？(Parse a PHP file as an XML file?)

 我一直在研究一个在XML文件中显示数据的项目。 （这有点像一个API）。 我知道如何用PHP解析XML，以及如何在PHP中创建XML文件，但它们不能一起工作。 :) 
 
 基本上，我有两个文件： parse.php和xml.php 。 
 
 xml.php从MySQL数据库xml.php信息，并将其输出为XML。 
 
 parse.php加载并解析xml.php并将其输出为HTML。 
 
 如果我运行parse.php ，它不会加载xml.php 。 但是，如果我复制输出的XML（来自xml.php ）并将其保存为xml.xml文件（并将parse.php中的文件名parse.php为“xml.xml”），它将起作用。 我非常感谢任何帮助。 
 
 parse.php的内容： 
 
<?php

    $doc = "xml.php";

    $doc = @simplexml_load_file($doc) or die("Server Error: Recipe not found!");

    $title = $doc->title;

    echo $title

?>
 
 xml.php的内容： 
 
<?php

    header("Content-type: text/xml");

    $dbc = mysql... //gets data from database

    echo "<!DOCTYPE..."; //xml stuff here

    echo "<title>" . $dataFromMySQL . "</title>";

?>
 
 数据库连接起作用，并且XML中的DOCTYPE正常，所以这不是问题。 
 
 同样，当我使用PHP动态生成XML时，我只会遇到问题。 如果它是一个.XML文件，它可以正常工作。 
 
 谁能帮我？ 
 
 谢谢。 

I have been working on a project that displays data in an XML file. (It's kind of like an API). I know how to parse XML with PHP, and how to make an XML file in PHP, but they don't work together. :)
 
Basically, I have two files: parse.php and xml.php.
 
xml.php grabs info from a MySQL database, and outputs it as XML.
 
parse.php loads and parses xml.php and outputs it as HTML.
 
If I run parse.php, it does not load xml.php. However, if I copy the outputted XML (from xml.php) and save it as a xml.xml file (and change the filename in parse.php to 'xml.xml') it works. I'd really appreciate any help.
 
Content of parse.php:
 
<?php

    $doc = "xml.php";

    $doc = @simplexml_load_file($doc) or die("Server Error: Recipe not found!");

    $title = $doc->title;

    echo $title

?>
 
Content of xml.php:
 
<?php

    header("Content-type: text/xml");

    $dbc = mysql... //gets data from database

    echo "<!DOCTYPE..."; //xml stuff here

    echo "<title>" . $dataFromMySQL . "</title>";

?>
 
The database connection works, and the DOCTYPE in the XML is ok, so that's not the problem.
 
Again, I only get the problem when I generate XML dynamically using PHP. If it's a .XML file, it works fine.
 
Can anyone help me?
 
Thanks.

原文：https://stackoverflow.com/questions/10742985