PHP code from XSL won't execute

Dormilich

Hi,

I'm running into a problem with the <xsl:processing-instruction> element (Sablotron).

purpose:
I generate a xhtml fragment from a xml file via xslt. This is printed (echo) to the output (i.e. all xml/xsl processing is done on the server). This is fine, as long as the output contains only xhtml.

problem:
one special page uses AJAX, where the result is taken from a MySQL database. To make it easier writing copy, I (sucessfully) use php code to paste the link (and the content, if Javascript is not activated):

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# top of included file

# lib.db.php is used for MySQL processing

    include_once(SYS_DIR . "lib.db.php");

    $artikel =& new AjaxRequest;
 
# for each link

    $artikel->getArticle("__DB-entry-ID__");

this will result in:

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# for each link

  <div id="__DB-entry-ID__" class="einzug">

    <a id="a__DB-entry-ID__" class="cfa" href="main.php?AOD=__DB-entry-ID__#a__DB-entry-ID__">Artikeltext anschauen</a>

  </div>

so far no problem when I include it from a file–but now the same as output from a xsl transformation:

It will readily transform the <xsl:processing-instruction> into php code, but the code is not parsed afterwards (even though the DOM recognizes it later as a processing instruction) it looks more like a CDATA section. I find the PHP code afterwards in the xhtml file, just like that:

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<?php

    include_once(SYS_DIR . "lib.db.php");

    $artikel =& new AjaxRequest;

?>

  <h4><a class="hook" id="h6">__Title-of-Item__</a></h4>

  <p>__Publication-Date__, __Newspaper-Name__</p>

  <div class="mitte">

    <img src="bilder/presse/__IMG-source__" title="__IMG-title__" width="__IMG-width__" height="__IMG-height__" />

  </div>

<?php

    $artikel->getArticle("__DB-entry-ID__");

?>

does anyone have an idea, how I can get PHP to parse the output from the xsl transformation?

thanks in advance

file listings:

xml file (presse.xml) (representative entry):

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<!DOCTYPE presse [ ... ]]>

<presse

    xmlns="http://www.kulturbeutel-leipzig.net/XML/presse"

    xmlns:link="http://www.kulturbeutel-leipzig.net/XML/link"

    xmlns:dcterms="http://purl.org/dc/terms/">
 
<collection title="__Title-of-Item__">

  <item db="__DB-entry-ID__">

    <zeitung>__Newspaper-Name__</zeitung>

    <datum>__Publication-Date__</datum>

    <thumbnail src="__IMG-source__" wdt="__IMG-width__" hgt="__IMG-height__">

       <title>__IMG-Title__</title>

    </thumbnail>

  </item>

</collection>
 
</presse>

xsl file (sys.presse.xsl)
(I skip the further templates here, because they don't provide more information):

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<?xml version="1.0" encoding="iso-8859-1" ?>

<xsl:stylesheet version="1.0"

    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

    xmlns:html="http://www.w3.org/1999/xhtml"

    xmlns:presse="http://www.kulturbeutel-leipzig.net/XML/presse">
 
<xsl:output

    method="xml"

    encoding="iso-8859-1"

    omit-xml-declaration="yes"

    indent="yes" />
 
<xsl:template match="/">

  <xsl:element name="div">

    <xsl:attribute name="id">

      <xsl:text>zeitung</xsl:text>

    </xsl:attribute>
 
    <xsl:text>

  </xsl:text>

    <xsl:element name="h1">

      <xsl:text>Zeitungsausschnitte</xsl:text>

    </xsl:element>
 
    <xsl:text>

  </xsl:text>

    <xsl:element name="p">

      <xsl:attribute name="class">

        <xsl:text>mitte</xsl:text>

      </xsl:attribute>

      <xsl:text>oder was man so in den Zeitungen so über uns findet …</xsl:text>

    </xsl:element>
 
# here comes the php code, if I don't escape & and > I'll get a parser error

    <xsl:processing-instruction name="php">

    include_once(SYS_DIR . "lib.db.php");

    $artikel =&amp;amp; new AjaxRequest;

    </xsl:processing-instruction>
 
    <xsl:apply-templates />
 
  </xsl:element>

</xsl:template>
 
<xsl:template match="//presse:collection">

  <xsl:call-template name="heading" />

  <xsl:for-each select="child::presse:item">

    <xsl:call-template name="titel" />

    <xsl:if test="attribute::db">

        <xsl:call-template name="text" />

    </xsl:if>

    <xsl:if test="child::presse:thumbnail">

       <xsl:call-template name="bild" />

    </xsl:if>

    <xsl:if test="child::presse:file">

       <xsl:call-template name="download" />

    </xsl:if>

    <xsl:if test="child::presse:url">

       <xsl:call-template name="verweis" />

    </xsl:if>

  </xsl:for-each>

</xsl:template>

</xsl:stylesheet>

php calling hierarchy:

top level script: main.php
creates an object and calls the output function

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    require_once("system/lib.main.php");

    $inhalt =& new ContentOutput($_GET["__page-ID__"]);

    $inhalt->DataInhalt();

php library: lib.main.php
does the part of putting it all together

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# the xslt parser (in a nutshell) (SYS_DIR is where all the files are)
 
    function parseXSLT($xml, $xsl, $par = NULL, $args = array()) {

        $xml = SYS_DIR . $xml;

        $xsl = SYS_DIR . $xsl;

        $handle = xslt_create();

        $parsedfile = xslt_process($handle, $xml, $xsl, NULL, $args, $par);

        xslt_free($handle);

        return $parsedfile;

    }
 
# $this->ID is set when calling the object in the first place

# $this->Data is an array of objects containing the information for every web page like: include file or files and parameters for xslt (either of them)
 
    function DataInhalt() {

# set of parameters for xsl processing

        $parameter = NULL;

        $xmlfile = 'Struktur.xml';

        $xslfile = $this->Data[$this->ID]->datei["xsl"];

        $tempxml = $this->Data[$this->ID]->datei["xml"];

        $temppar = $this->Data[$this->ID]->datei["para"];

        $tempfile = $this->Data[$this->ID]->datei["file"];

        if (!empty($tempxml)) {

            $xmlfile = $tempxml;

        }

        if (!empty($temppar)) {

            $parameter = array($temppar => $this->ID);

        }

# if there's a file, include it an quit function

        if (!empty($tempfile)) {

            include(BASE_DIR . $tempfile);

            return;    

        }

# do xsl processing

        if (!$KBL_inhalt = $this->parseXSLT($xmlfile, $xslfile, $parameter)) {

            echo '<p class="mitte b">Parser Error</p>';

            return;

        }

        else {

# print result

             print $KBL_inhalt;

        }

    }

System: Apache 1.3.4 / Mac OS X 10.4.11 / PHP 4.3.1 (from entropy.ch)

Dormilich

problem solved

I now write the result string to file (at the first page load after the xml was updated) and load that file via include().

PHP code from XSL won't execute

re: PHP code from XSL won't execute

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