本文实例为大家分享了PHP微信谷歌测距的具体代码，供大家参考，具体内容如下

<div class="jb51code">
<pre class="brush:PHP;">
<?php
/**

• wechat php test
  */

//define your token
define("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<a href="/tag/tupian/" target="_blank" class="keywords">图片</a>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<a href="/tag/lianjie/" target="_blank" class="keywords">链接</a>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<a href="/tag/gongneng/" target="_blank" class="keywords">功能</a>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;
}

}
}

?>