$content = json_decode($zcmod['content'], true);
$limit = $content['zcmsg']['attr']['argu']['limit'];
if(!isset($catid)){
$modelid = $content['zcmsg']['modelid'];
$Category = M('Category')->where('modelid='.$modelid.' and parentid=0')->find();
$catid = $Category['catid'];
}
echo M()->getLastSql();
var_dump($data);