<?php
error_reporting(E_ERROR);
$DOM = new DOMDocument();
if($DOM->load('koer1.xml')){
  if($DOM->schemaValidate("koeraskeem.xsd")){
    header("Content-type: text/xml");
    echo $DOM->saveXML();
  } else {
    echo "Ei vasta skeemile";
  }
} else {
  echo "Pole xml";
}
?>