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Asked: 2026-05-11T09:38:48+00:00

I’m trying to use the Macromedia XSLTransform class to convert XML returned from Amazon

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I’m trying to use the Macromedia XSLTransform class to convert XML returned from Amazon Web Services to HTML. Here’s the PHP page that calls the transform:

<?php require_once('includes/MM_XSLTransform/MM_XSLTransform.class.php');   $restquery = 'http://ecs.amazonaws.com/onca/xml?Service=AWSECommerceService&AWSAccessKeyId=[myid]&Operation=ItemLookup&ResponseGroup=Large&ItemId=' . htmlspecialchars($_GET['asin']); $mm_xsl = new MM_XSLTransform(); $mm_xsl->setXML($restquery); $mm_xsl->setXSL('aws1.xsl'); echo $mm_xsl->Transform(); ?>

And here’s a snippet of the aws1.xsl page

<?xml version='1.0'?> <xsl:stylesheet    version='1.0'    xmlns:xsl='http://www.w3.org/1999/XSL/Transform'    xmlns:aws='http://webservices.amazon.com/AWSECommerceService/2006-06-07'>    <xsl:output method='html' encoding='UTF-8' omit-xml-declaration='yes'/>    <xsl:template match='aws:Item'>     <html>       <body>         <table>           <tr>             <td style='border-bottom:#C0C0C0 dotted 1px;padding:10px'>               <table cellpadding='0' cellspacing='0' style='width: 90%;padding:5px'>                 <tr>                   <xsl:if test='aws:SmallImage/aws:URL'>                     <td valign='top' width='50'>                       <img>                         <xsl:attribute name='src'>                           <xsl:value-of select='aws:SmallImage/aws:URL' disable-output-escaping='yes' />                         </xsl:attribute>                         <xsl:attribute name='border'>0</xsl:attribute>                       </img>                     </td>                   </xsl:if>                   <!-- bunch of other stuff -->                 </tr>               </table>             </td>           </tr>         </table>       </body>     </html>   </xsl:template>  </xsl:stylesheet>

The basic code is working – I get data on the expected ASIN item back. And I know the XSL basically works because if I intentionally put an invalid attribute in I get a parser error. But what I get back is a big unformatted bunch of text instead of HTML. I’ve tried various <xsl:output method> options, but none seems to work. I thinks it’s some kind of encoding or charset problem.

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1 Answer

  1. You need to create a rule to match ‘/’ or XSL will implicitly generate one for you based on a to-text conversion of the document tree.

    I would rewrite the XSL to this:

    <xsl:stylesheet    version='1.0'    xmlns:xsl='http://www.w3.org/1999/XSL/Transform'    xmlns:aws='http://webservices.amazon.com/AWSECommerceService/2006-06-07'>    <xsl:output method='html' encoding='UTF-8' omit-xml-declaration='yes'/>    <xsl:template match='/'>     <html>       <head>...</head>       <body>         <table>           <thead>...</thead>           <tbody>             <xsl:apply-templates select='//aws:Item'/>           </tbody>         </table>       </body>     </html>   </xsl:template>    <xsl:template match='aws:Item'>     <tr>       <td>...</td>     </tr>   </xsl:template>  </xsl:stylesheet>

    OR add this template to your existing xsl

    <xsl:template match='*|@*'> <xsl:apply-templates select='*|@*'/> </xsl:template>

    Both templates would match document root (‘/’) which is the ONLY implicit match that XSL does. This first would make ‘/’ map to the html tag which would create a table in which each table row maps to aws:item. The second would match all nodes (and attributes), output nothing, and then attempt to match all children. The first is better if you only want to process aws:Item, the second is better if you want to process all nodes. The second may (depending on the optimization features of you xslt processor and your particular xslt document) take much longer to process.

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