03 xml封装通信接口

<?php

class Response_xml{

  /**
  *按xml方式输出通信
  *@param integet $code 状态码
  *@param string $message 提示信息
  *@param array $data 数据
  * return string
  */
  public static function xml_encoding($code,$message,$data=array()){

           if(is_null($code)){
            return '';
           }
           $result=array(
            'code'=>$code,
            'message'=>$message,
            'data'=>$data
           );
          header("Content-Type:text/xml");
         $xml ="<?xml version='1.0' encoding='UTF-8'?>\n";
         $xml.="<root>\n";
         $xml.=self::xml_array($result);
         $xml.="</root>\n";
         echo $xml;

    }
    public static function xml_array($result){
        $xml=$attr="";
        foreach ($result as $key => $value) {
            if(is_numeric($key)){
               $attr=" id='{$key}'";
               $key="item";
            }
            $xml.="<{$key}{$attr}>\n";
            $xml.=is_array($value)?self::xml_array($value):$value;
            $xml.="</{$key}>\n";
        }
        return $xml;
    }

}
   $data=array(
    'id'=>1,
    'name'=>'hgj123',
   );
   $data1=array(1,2,3,11,122);
Response_xml::xml_encoding(200,'数据返回成功',$data1);