一个放在自己搭建的阿里云轻量应用服务器，一个放在新浪云的SAE上，两个都同过了token验证，同样的代码，在阿里云上的却没办法自动回复，就是发信息到公众号，既没有回复，也没有报错，阿里云服务器上环境php7.0 +apache2， SAE上的php5.6
下面是具体代码：

public function responseMsg ()
{
$postStr = isset($GLOBALS['HTTP_RAW_POST_DATA']) ? $GLOBALS['HTTP_RAW_POST_DATA'] : file_get_contents("php://input");
if(!empty($postStr)){
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$RX_TYPE = strtolower($postObj->MsgType);

        switch($RX_TYPE){
            case"event":
                $resultStr = $this->receiveEvent($postObj);
                break;
            case"text":
                $this->moulds($postObj);
                $resultStr = $this->receiveText($postObj);
                break;
            default:
                $resultStr = "";
                break;
        }
        echo $resultStr;
    }else{
        echo "";
        exit;
    }
}

public function receiveEvent($object)
{
$checkEvent = strtolower($object->Event);
switch($checkEvent){
case"subscribe":
$contentStr = "欢迎关注我的公众号
点击下方菜单可以充值E卡通,进入内网！
后台回复'绑定+学号+密码'进行绑定！
这样才能使用查询成绩，课表，考试时间等功能！";
break;
default:
break;
}
$resultStr = $this->transmitText($object, $contentStr);
return $resultStr;
}

public function receiveText($object)
{
$keyword = trim($object->Content);
$fromUsername = $object->FromUserName;
if(!empty($keyword)){
switch($keyword){
case"你好":
$contentStr = "你好呀！";
break;
case"我想你了":
$contentStr = "我也想你";
break;
default:
$contentStr = "你在说什么？";
break;
}
}
$resultStr = $this->transmitText( $object, $contentStr);
return $resultStr;
}

public function transmitText($object, $content)
{
$textTp="<xml><ToUserName><[CDATA[%s]]></ToUserName><FromUserName><[CDATA[%s]]></FromUserName><CreateTime>%s</CreateTime><MsgType><[CDATA[text]]></MsgType><Content><[CDATA[%s]]></Content></xml>";
$resultStr = sprintf($textTp, $object->FromUserName, $object->ToUserName, time(), $content);
return $resultStr;
}