php处理xml

      $abc = "        <xml>            <toppings>                <item>pepperoni</item>                <item>tomato</item>            </toppings>        </xml>";        $xml = simplexml_load_string($abc);        dump($xml);exit;        $data = json_decode(json_encode($xml),TRUE);        dump($data['toppings']['item']['0']);exit;