Thank you for your answers http://www.w3.org/TR/xslt#extension explain the used of the extension but both are listed and seem to work correctly A namespace is designated as an extension namespace by using an extension-element-prefixes attribute on an xsl:stylesheet element or an xsl:extension-elemen...

Hello I use PHP function in my template with this syntax <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:php="http://php.net/xsl" xsl:extension-element-prefixes="php" exc...