eZ\Publish\Core\REST\Common\FieldTypeProcessor\RichTextProcessor::postProcessValueHash PHP Method

    public function postProcessValueHash($outgoingValueHash)
    {
        $document = new DOMDocument();
        $document->loadXML($outgoingValueHash['xml']);
        $outgoingValueHash['xhtml5edit'] = $this->docbookToXhtml5EditConverter->convert($document)->saveXML();
        return $outgoingValueHash;
    }