</pre><a target=_blank href=\"http://blog.csdn.net/misakaqunianxiatian/article/details/49401759\" target=\"_blank\"></a></p><p><pre name=\"code\" class=\"php\"> public function responseMsg(){
  
 //get post data, May be due to the different environments
  $postStr = $GLOBALS[\"HTTP_RAW_POST_DATA\"]; //接收微信发来的XML数据

  //extract post data
 if(!empty($postStr)){
    
   //解析post来的XML为一个对象$postObj
   $postObj = simplexml_load_string($postStr, \'SimpleXMLElement\', LIBXML_NOCDATA);
  
   $fromUsername = $postObj->FromUserName; //请求消息的用户
   $toUsername = $postObj->ToUserName; //\"我\"（订阅号）的公众号id
   $keyword = trim($postObj->Content); //用户发给订阅号的消息内容
   $time = time(); //时间戳
   $msgtype = \'text\'; //消息类型：文本
   $textTpl = \"<xml>
  <ToUserName><![CDATA[%s]]></ToUserName>
  <FromUserName><![CDATA[%s]]></FromUserName>
  <CreateTime>%s</CreateTime>
  <MsgType><![CDATA[%s]]></MsgType>
  <Content><![CDATA[%s]]></Content>
  </xml>\";

   if($postObj->MsgType == \'event\'){ //如果XML信息里消息类型为event
    if($postObj->Event == \'subscribe\'){ //如果是订阅事件
     $contentStr = \"欢迎订阅misaka去年夏天！\\n更多精彩内容：http://blog.csdn.net/misakaqunianxiatian\";
     $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgtype, $contentStr);
     echo $resultStr;
     exit();
    }
   }

   $which = mb_substr($keyword, 0, 2, \'UTF-8\');//获取要返回什么样的信息

   if($which== \"翻译\"){ //如果要进行翻译
    $fanyi = $which;
    $search = str_replace($fanyi, \'\', $keyword); //要翻译的关键字

    $key = \"\"; //在有道API申请的key
    $keyfrom = \"\"; //与key对应
    $url = \'http://fanyi.youdao.com/openapi.do?keyfrom=\' . $keyfrom . \'&key=\' . $key . \'&type=data&doctype=json&version=1.1&q=\' . urlencode($search);//调用有道翻译API
    
    $json = file_get_contents($url);//也可以用curl来获取
    $res = json_decode($json, true);

    /**
     * 以下从返回的数据中提取翻译结果
     */
    $contentStr = \'【查询】\' . $res[\'query\'] . \"\\n\";
    $contentStr .= \"【翻译】\\n\" . $res[\'translation\'][0] . \"\\n\";

    $str = \'\';
    foreach($res[\'basic\'][\'explains\'] as $v){
     $str .= $v . \"\\n\";
    }
    $contentStr .= \"【基本释义】\\n\" . $str;


    if(isset($res[\'web\'])){

     foreach($res[\'web\'] as $kk=>$vv){
      sort($vv);
      $res[\'web\'][$kk] = $vv; //调节字段顺序
     }

     $str = \'\';
     foreach($res[\'web\'] as $v){
      foreach($v as $k2=>$v2){
       if($k2 == 0){
        $str .= \"【\". $v2 .\"】\\n\";
       }else{
        foreach($v2 as $v3){
         $str .= $v3 .\"\\n\";
        }
       }
      }
     }
     $contentStr .= \"【网络释义】\\n\" . $str;     
    }

    $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgtype, $contentStr);
    echo $resultStr;
    exit(); 

   }