Question

How do I use php sessions in XSLT for example for making a shopping cart for a webshop?

A user can browse the site and click ‘Add to cart’ on several items. Each item should then be stored in a session variable. The user can at all time view the items selected by clicking ‘View cart’.

Answer 1

If you’re using XSLT from within PHP, you can pass parameters to it by XSLTProcessor::setParameter(). You’ll have to declare that parameter in XSL with

<xsl:param name='«param name»'/> 

For example…

PHP:

// $xsl, $xml -- DOMDocument objects $proc = new XSLTProcessor; $proc->importStyleSheet($xsl); $proc->setParameter(''/*default namespace*/, 'test_param', $aValue); $proc->setParameter('', 'session_name', session_name()); $proc->setParameter('', 'session_id', session_id()); echo $proc->transformToXML($xml); 

XSL:

<?xml version='1.0'?> <xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>     <xsl:param name='test_param'/>     <xsl:param name='session_name'/>     <xsl:param name='session_id'/>     <xsl:template match='/'>         <p>Your test parameter is: <xsl:value-of select='$test_param'/></p>         <p>Your session name is: <xsl:value-of select='$session_name'/></p>         <p>Your session ID is: <xsl:value-of select='$session_id'/></p>         <p>          <a>           <xsl:attribute name='href'>             <xsl:value-of select='concat('http://example.com/index.php?',$session_name,'=',$session_id)'/>           </xsl:attribute>           Link with session         </a>        </p>      </xsl:template> </xsl:stylesheet>