<?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;    $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;  } }}?>