数组转xml

/**  * 数组转xml */ public function arrayToXml($arr){        $xml = "
     
      ";        foreach ($arr as $key=>$val) {            if (is_numeric($val)){                $xml.="<".$key.">".$val."
      ";            }else{                $xml.="<".$key.">
      ";            }        }        $xml.="
     ";        return $xml;  }

xml转数组

/**     * xml转数组     */    public function xmlToArray($xml){        //禁止引用外部xml实体        libxml_disable_entity_loader(true);        $values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);        return $values;    }