Creating xml file

Good day,

i'm trying to setup an xml file. I got it working but not totally.

$xml = new \XMLWriter();
        $xml->openMemory();
        $xml->setIndent(true);
        $xml->startDocument('1.0','UTF-8');

        foreach ($dps as $key => $dp) {
        
                $xml->startElement('entry');
                         
                    $xml->startElement('tile');
                    $xml->text('Mail Filter');
                    $xml->endElement();
          
                        
                    $xml->startElement('updated');
                    $xml->text('2021-04-28T08:57:46Z');
                    $xml->endElement();

                    $xml->startElement('content');
                    $xml->text('');
                    $xml->endElement();
		}

        	     $xml->endDocument();
                        
            	  $show_dps_list = $xml->outputMemory();
                  $xml = null;

but i want some extra rules in de xml file. Like this one.

<apps:property name='hasTheWord' value='[email protected]'/>

How do i create those from php? Like i did above with other elements?

thanks for the help!