Listing 1-5: The PHP/Sablotron script (transform.php)

<?php

// Include the DeviceType() function.
INCLUDE("xmllib.inc");


// What are the XML and XSL files?
$xmlFile = "news.xml";
$xslFile = DeviceType();

// Create a new processor handle
$th = @xslt_create() or die("Can't create XSLT handle!");

// Open the XML and XSL files
$xh = fopen($xmlFile, "r") or die("Can't open XML file");
$sh = fopen($xslFile, "r") or die("Can't open XSL file");

// Read in the XML and XSL contents
$xmlContent = fread($xh, filesize($xmlFile));
$xslContent = fread($sh, filesize($xslFile));

// Perform the XSL transformation
@xslt_process($xslContent, $xmlContent, $XSLtransformation);

// send the correct WAP header if necessary
if ($xslFile == "wapnews") :

header("content-type: text/vnd.wap.wml");

endif;

// Output the transformed XML file
echo $XSLtransformation;

// Free up the resources
@xslt_free($th);

?>

Figure 1. News.xml transformed using pcnews.xsl.

Figure 2. news.xml transformed using wapnews.xsl