微信公众号开发之获取位置信息php代码

<?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;
    $customevent = $postobj->event;
    $latitude = $postobj->location_x;
    $longitude = $postobj->location_y;
    $keyword = trim($postobj->content);
    $time = time();
    $texttpl = "<xml>
       <tousername><![cdata[%s]]></tousername>
       <fromusername><![cdata[%s]]></fromusername>
       <createtime>%s</createtime>
       <msgtype><![cdata[%s]]></msgtype>
       <content><![cdata[%s]]></content>
       <funcflag>0</funcflag>
       </xml>";    
    if($type=="event" and $customevent=="subscribe"){
     $contentstr = "感谢你的关注\n回复1查看联系方式\n回复2查看最新资讯\n回复3查看法律文书";
     $msgtype = "text";
     $resultstr = sprintf($texttpl, $fromusername, $tousername, $time, $msgtype, $contentstr);
     echo $resultstr;
     } 
    if($type=="image" ){
     $contentstr = "你的图片很棒！";
     $msgtype = "text";
     $resultstr = sprintf($texttpl, $fromusername, $tousername, $time, $msgtype, $contentstr);
     echo $resultstr;
     } 
    if($type=="location" ){
     $contentstr = "你的纬度是{$latitude},经度是{$longitude},我已经锁定！";
     $msgtype = "text";
     $resultstr = sprintf($texttpl, $fromusername, $tousername, $time, $msgtype, $contentstr);
     echo $resultstr;
     }  
    if(!empty( $keyword ))
    {        
     $msgtype = "text";
     if($keyword=="1"){
     $contentstr = "qiphon";}
     if($keyword=="2"){
     $contentstr = "test222";}
     if($keyword=="3"){
     $contentstr = "test333";}     
     $resultstr = sprintf($texttpl, $fromusername, $tousername, $time, $msgtype, $contentstr);
     echo $resultstr;
    }else{
     echo "input something...";
    }

  }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;
  }
 }
}

?>