thinkPHP5框架接口写法简单示例(2)

<?php
namespace Org;
class Response {
 const JSON = "json";
 /**
 * 按综合方式输出通信数据
 * @param integer $code 状态码
 * @param string $message 提示信息
 * @param array $data 数据
 * @param string $type 数据类型
 * return string
 */
 public static function show($code, $message = '', $data = array(), $type = self::JSON) {
 if(!is_numeric($code)) {
  return '';
 }
 // $type = 'json';
 isset($_GET['format']) ? $_GET['format'] : self::JSON;
 $result = array(
  'code' => $code,
  'message' => $message,
  'data' => $data,
 );
 if($type == 'json') {
  self::json($code, $message, $data);
  exit;
 } elseif($type == 'array') {
  var_dump($result);
 } elseif($type == 'xml') {
  self::xmlEncode($code, $message, $data);
  exit;
 } else {
  // TODO
 }
 }
 /**
 * 按json方式输出通信数据
 * @param integer $code 状态码
 * @param string $message 提示信息
 * @param array $data 数据
 * return string
 */
 public static function json($code, $message = '', $data = array()) {
 
 if(!is_numeric($code)) {
  return '';
 }
 $result = array(
  'code' => $code,
  'message' => urlencode($message),
  'data' => $data
 );
 echo urldecode(json_encode($result,JSON_UNESCAPED_UNICODE));
 exit;
 }
 /**
 * 按xml方式输出通信数据
 * @param integer $code 状态码
 * @param string $message 提示信息
 * @param array $data 数据
 * return string
 */
 public static function xmlEncode($code, $message, $data = array()) {
 if(!is_numeric($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";
 $xml .= self::xmlToEncode($result);
 $xml .= "</root>";
 echo $xml;
 }
 public static function xmlToEncode($data) {
 $xml = $attr = "";
 foreach($data as $key => $value) {
  if(is_numeric($key)) {
  $attr = " id='{$key}'";
  $key = "item";
  }
  $xml .= "<{$key}{$attr}>";
  $xml .= is_array($value) ? self::xmlToEncode($value) : $value;
  $xml .= "</{$key}>\n";
 }
 return $xml;
 }
}