TalkPHP - PHP and XML?

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I was just thinking about it, and... How can you form a page while "separating data from presentation"? Marking up a piece of data just for presentational purposes (in XML) is the same as using a tag like <sup> in HTML, yet the latter is frowned upon.

Anyway my question is: Can you use PHP in an XML file, or XML in a php file? How exactly would that work out...

Well.
Simple usage of XML is - you read data from it, you can structure it how you like.

For using php in XML file - sure - but you must use eval() for that code to be executed.
XML in a PHP file - XML must be in a string

PHP Code:


		
			
<?php

 $xml = "

<?xml version="1.0" encoding="utf-8"?>

<books>

 <bookInfo>

    <id>12</id>

    <name>The Test Name Of A Book</name>

    <price>18,45</price>

  </bookInfo>

</books>

";

?>

Parsing in now real easy using the PHP5s DOM or XPath.

Can you provide more detailed question :) Hope this cleared some things.