PHP a XML (problem)

<parameters>
<parameter id="6" name="mesto" typ="ENUM" systemid="">
<enumValue valueId="5" value="Kosice"/>
<enumValue valueId="6" value="Bratislava"/>
<enumValue valueId="7" value="Presov"/>
<enumValue valueId="8" value="Martin"/>
<enumValue valueId="9" value="Levoca"/>
</parameter>

<parameter id="9" name="ulica" typ="ENUM" systemid="s9">
<enumValue valueId="4" value="hlavna"/>
<enumValue valueId="5" value="jarna"/>
<enumValue valueId="6" value="jesenna"/>
</parameter>
</parameters>

insert into option values ( 6 , 'select' ,1 );
insert into option_description values ( 6 , 1 ,'mesto' );
insert into option values ( 9 , 'select' ,1 );
a insert into option_description values ( 6 , 1 ,'ulica' );

foreach($xml->parameters->parameter as $key) {
  echo "\n\r<br/><br/>insert into option  values (
".$key['id']."
, 'select'
,1
);";

  echo "\n\r<br/>insert into option_description  values (
".$key['id']."
, 1
,'".$key['name']."'
);";

}

foreach($xml->parameters->parameter as $key) {
  echo "\n\r<br/><br/>insert into option  values (
".$key['id']."
, 'select'
,1
);";

  echo "\n\r<br/>insert into option_description  values (
".$key['id']."
, 1
,'".$key['name']."'
);";

foreach($key->enumValue as $cat) {

  echo "\n\r<br/>insert into option_value  values (
".$cat['valueId']."
, 1
,'".$cat['value']."'
);";
}

}

$request_url = "http://www........";
$xml = simplexml_load_file($request_url) or die("feed sa nepodarilo načítať");