<?php/** * wechat php test *///define your tokendefine("TOKEN", "weixin");$wechatObj = new wechatCallbackapiTest();//$wechatObj->valid();$wechatObj->responseMsg();class wechatCallbackapiTest{  public function valid()  {    $echoStr = $_GET["echostr"];    //valid signature , option    if($this->checkSignature()){      echo $echoStr;      exit;    }  }  public function responseMsg()  {    //get post data, May be due to the different environments    $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];    //extract post data    if (!empty($postStr)){        $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);        $fromUsername = $postObj->FromUserName;        $toUsername = $postObj->ToUserName;        $type = $postObj->MsgType;        $customrevent = $postObj->Event;        $latitude = $postObj->Location_X;        $longitude = $postObj->Location_Y;        $keyword = trim($postObj->Content);        $time = time();        $textTpl = "<xml>              <ToUserName><![CDATA[%s]]></ToUserName>              <FromUserName><![CDATA[%s]]></FromUserName>              <CreateTime>%s</CreateTime>              <MsgType><![CDATA[%s]]></MsgType>              <Content><![CDATA[%s]]></Content>              <FuncFlag>0</FuncFlag>              </xml>";               switch ($type)      {  case "event";        if ($customrevent=="subscribe")          {$contentStr = '';}        break;        case "image";        $contentStr = "你的图片很棒！";        break;        case "location";        $disurl="http://maps.googleapis.com/maps/api/distancematrix/xml?origins={$latitude},{$longitude}&destinations=23.355164,116.681889&mode=walking&language=zh-CN&sensor=false";      $apistr=file_get_contents($disurl);      $apiobj=simplexml_load_string($apistr);      $disobj=$apiobj->row->element->distance->text;      $durobj=$apiobj->row->element->duration->text;      $contentStr = "你离我公司约{$disobj}公里，步行约{$durobj}";        break;        case "link" ;        $contentStr = "你的链接有病毒吧！";        break;        case "text";        $weatherurl="http://api.map.baidu.com/telematics/v2/weather?location={$keyword}&ak=1a3cde429f38434f1811a75e1a90310c";         $apistr=file_get_contents($weatherurl);         $apiobj=simplexml_load_string($apistr);         $placeobj=$apiobj->currentCity;//读取城市         $todayobj=$apiobj->results->result[0]->date;//读取星期         $weatherobj=$apiobj->results->result[0]->weather;//读取天气         $windobj=$apiobj->results->result[0]->wind;//读取风力         $temobj=$apiobj->results->result[0]->temperature;//读取温度         $contentStr = "{$placeobj}{$todayobj}天气{$weatherobj}，风力{$windobj}，温度{$temobj}";         break;                default;      $contentStr ="此项功能尚未开发";        }        $msgType="text";        $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);        echo $resultStr;    }else {      echo "";      exit;    }  }  private function checkSignature()  {    $signature = $_GET["signature"];    $timestamp = $_GET["timestamp"];    $nonce = $_GET["nonce"];      $token = TOKEN;    $tmpArr = array($token, $timestamp, $nonce);    sort($tmpArr);    $tmpStr = implode( $tmpArr );    $tmpStr = sha1( $tmpStr );    if( $tmpStr == $signature ){      return true;    }else{      return false;    }  }}?>