class.ilCertificateXlstProcess.php

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<?php

declare(strict_types=1);

class ilCertificateXlstProcess
{
    public function process(array $args, array $params): string
    {
        $processor = new XSLTProcessor();

        $xslt_domdoc = new DomDocument();
        $xslt_domdoc->loadXML($args['/_xsl']);
        $processor->importStyleSheet($xslt_domdoc);

        foreach ($params as $key => $value) {
            $processor->setParameter('', $key, (string) $value);
        }

        $xml_domdoc = new DomDocument();
        $xml_domdoc->loadXML($args['/_xml']);

        return $processor->transformToXML($xml_domdoc);
    }
}