时间:2021-07-01 10:21:17 帮助过:56人阅读
$sqlstr = "select * from table where id<6";$query = mysql_query($sqlstr) or die(mysql_error());while($thread=mysql_fetch_array($query)){ $result[] = $thread;}print_r($result);
建议一开始建立表结构的时候考虑下无限级分类;然后把你这个表好好优化下那样获取就更好了。
select cate1, group_concat(cate2) as cate2 from tbl_name where cate2!='' group by cate1 order by id
cate1 cate2 Protect Power Bank Protectio,Table Protection,Phone Case Power Wall Charger,Car Charger,Power Bank Keyboard&Mouse Mouse,Keyboard Headphone Bluetooth Headphone,Earphone,Headphone Bluetooth_Speaker Wall Charger,Car Charger,Power Bank
无限级分类要怎么做,该怎么优化?
cate2中的数据怎么提取成单个的结果,以逗号为界。
无限级分类要怎么做,该怎么优化?
cate2中的数据怎么提取成单个的结果,以逗号为界。