Modify XML via PHP and output xml (almost like a filter a feed)

[dafl0w]

In PHP, I have to filter this rss feed and output new rss feed.Read the feed, see where the dc:creator== badcreatorname and remove the item and put the feed in the same order.How do I do that? Please help.\[code\]<?xml version="1.0"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"> <channel> <title>LInk.com title</title> <link>http://link.com</link> <description>Link.com</description> <image> <url>http://www.link.com/media/feedlogo.gif</url> <title>link.com</title> <link>http://link.com</link> </image> <language>en-us</language> <copyright>Copyright 2012 </copyright> <generator>Generator</generator> <item> <title><![CDATA[Title goes here]]></title> <link><![CDATA[http://link.com/]]></link> <guid isPermaLink="true"><![CDATA[http://link.com/]]></guid> <description><![CDATA[ Desc]]></description> <dc:creator><![CDATA[badcreatorname]]></dc:creator> <pubDate>Mon, 17 Sep 2012 15:16:00 EST</pubDate> <dc:identifier>898980</dc:identifier> <category domain="category"><![CDATA[cat]]></category> <category domain="blogger:name"><![CDATA[cat]]></category> <enclosure url="pic" length="" type="image/jpeg"/> </item> <item> <title><![CDATA[Title1 goes here]]></title> <link><![CDATA[http://link1.com/]]></link> <guid isPermaLink="true"><![CDATA[http://link1.com/]]></guid> <description><![CDATA[ Desc1]]></description> <dc:creator><![CDATA[goodcreatorname]]></dc:creator> <pubDate>Mon, 17 Sep 2012 15:16:00 EST</pubDate> <dc:identifier>8989801</dc:identifier> <category domain="category"><![CDATA[cat]]></category> <category domain="blogger:name"><![CDATA[cat]]></category> <enclosure url="pic" length="" type="image/jpeg"/> </item> </channel></rss>\[/code\]