微信支付开发 告警通知

<xml>
    <AppId><![CDATA[wxf8b4f85f3a794e77]]></AppId>
    <ErrorType>1001</ErrorType>
    <Description><![CDATA[错识描述]]></Description>
    <AlarmContent><![CDATA[错误详情]]></AlarmContent>
    <TimeStamp>1393860740</TimeStamp>
    <AppSignature><![CDATA[f8164781a303f4d5a944a2dfc68411a8c7e4fbea]]></AppSignature>
    <SignMethod><![CDATA[sha1]]></SignMethod>
</xml>

$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
logger("错误类型：".$postObj->ErrorType."错识描述：".$postObj->Description."错误详情：".$postObj->AlarmContent);

//日志记录
function logger($log_content)
{
    $max_size = 100000;
    $log_filename = "log.xml";
    if(file_exists($log_filename) and (abs(filesize($log_filename)) > $max_size)){unlink($log_filename);}
    file_put_contents($log_filename, date('H:i:s')." ".$log_content."\r\n", FILE_APPEND);
}