公众号回复：暂时无法提供服务

[lsj1982]

主页代码如下，在公众号输入信息“？”，提示“暂进无法提供服务”，浏览器测试出错：
Fatal error: Call to a member function responsemsg() on null in /data1/www/htdocs/350/lsj2017/1/index.php on line 10
该页面的提供者尚未完成 实名认证 您的访问可能存在风险
不知觉厉！

<?php

define("TOKEN","LSJ20170123");

$wechatObj = new wechatCallbackapiTest();

if(isset($_get['echostr'])){
$wechatobj->valid();
}else{
$wechatobj->responsemsg();

}

class wechatCallbackapiTest
{
public function valid()
{
$echoStr = $_GET["echostr"]; //随机字符串

if($this->checkSignature()){
echo $echoStr;
exit;
}
}

private function checkSignature()
{
$signature = $_GET["signature"]; //微信加密签名
$timestamp = $_GET["timestamp"]; //时间戳
$nonce = $_GET["nonce"]; //随机数

$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
sort($tmpArr); //进行字典序排序
$tmpstr=implode($tmparr);
$tmpstr=sha1($tmpstr);

//sha1加密后与签名对比
if( $tmpArr == $signature ){
return true;
}else{
return false;
}
}
public function responsemsg(){
$poststr=$globals["HTTP_RAW_POST_DATA"];
if(!empty($poststr)){
$postobj=simplexml_load_string($poststr,'simplexmlelement',LIBXML_NOCDATA);
$fromusername=$postobj->fromusername;
$tousername=$postobj->tousername;
$keyword=trim($postobj->content);
$time=time();
$texttpl="<xml>
<tousername><![cdata[%s]]></tousername>
<fromusername><![cdata[%s]]></fromusername>
<createtime>%s</createtime>
<msgtype><![cdata[%s]]></msgtype>
<content><![cdata[%s]]></content>
<funcflag>0<funcflag>
</xml>";
if($keyword=="?"||$keyword =="? ")
{
$msgtype="text";
$content=date("y-m-d h:i:s",time());
$result=sprintf($texttpl,$fromusername,$tousername,$time,$msgtype,$content);
echo "wellcome lsj's world";
echo $result;
}
}else{
echo "";
exit;
}
}

}

?>