XSLT error in php

Is It correct the xsl:stylesheet header in php

<xsl:stylesheet version="1.0" xmlns:xsl="http://ift.tt/tCZ8VR" xmlns:xsi="http://ift.tt/ra1lAU" xmlns:ms="http://ift.tt/1oU7y5S" xmlns:ns="http://php.net/xsl" exclude-result-prefixes="ms ns xsi">
                    <xsl:output method="xml" omit-xml-declaration="yes" indent="no"/>

I using below XSLTProcessor to format

$xsl = new XSLTProcessor();
        $xsl->importStyleSheet(DomDocument::loadXML($service_available_xsl));