$doc = new DOMDocument('1.0');
$doc->formatOutput = true;
$root = $doc->appendChild($doc->createElement("meniny"));
foreach($array as $a){
    if($a == null) continue;
         $zaznam = $root->appendChild($doc->createElement('zaznam'));
         foreach($a as $key=>$value){
              $zaznam = $zaznam->appendChild($doc->createElement($key,$value));
         }
    }
    echo $doc->save();