$content = json_decode($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);