Creating a simple XML reader

Create a php script, that can take two, or more xml files of various format, extract some simple data, and print them on the screen. I wish to be able to read [login to view URL], and [login to view URL] (where I can easily add more). The object created should contain the following items: NAME URL PRICE IMAGE_URL From [login to view URL] the following should be extracted: If <kategorinavn> = Festartikler & <produktnavn> contains "jule" Then NAME = <produktnavn> URL = <vareurl> PRICE = <nypris> IMAGE_URL = <billedurl> For [login to view URL] If <kategorinavn> contains "Trusser & Strings" NAME = <produktnavn> URL = <vareurl> PRICE = <nypris> IMAGE_URL = <billedurl> ****** If image URL = "[login to view URL]", only the relative path should be saved. In this case /product/[login to view URL]". When all data from both files are collected, the result should be: For all objects PRINT [caption align="alignleft" width="130"]<a href="_URL_" target="_blank" rel="nofollow"><img class="size-thumbnail" style="width: 130px;" src="_IMAGE_URL_" alt="_NAME_" width="130" height="150" /><div style="height:45px">_NAME_</div><span class="pris">_PRICE_ kr. </span></a>[/caption] Where _URL_ = URL _NAME_ = NAME _IMAGE_URL_ = IMAGE_URL _PRICE_ = PRICE