PHP+mysql的一个问题
这张是产品表
红色圈起的部分是产品的栏目组ID
这张是产品栏目表
我现在的问题是:
我从前端通过GET传一个产品栏目表的ID,获取这个ID之后怎样判断产品表里面的栏目组ID 还有GET传过来的字段。
sql语句
谢谢各位求指点了
回复讨论(解决方案)
?取$n_id后
在?品?目表用??$n_id查找一下是否存在??,如果是,表示是?品?目表的id,然後可以??下面的事件了。
select * from ?品?目表 where nav_id=$n_id;
?取$n_id后
在?品?目表用??$n_id查找一下是否存在??,如果是,表示是?品?目表的id,然後可以??下面的事件了。
select * from ?品?目表 where nav_id=$n_id;
可能我表达不清
我举个例子好了,比如
我通过get传了一个n_id=10001 ,我想通过这个参数找到 产品表的pro_navid里面包含10001的数据
返回 产品表的蓝色圈起的两条数据
... find_in_set('n_id', pro_navid)
你 pro_navid 中的那些点不会是小数点吧?改成逗号
select * from 产品目录表 where nav_id like %$n_id% ;
刚刚那个会有问题!!!这样把: select * from 产品目录表 where nav_id like % ,$n_id,% ;
刚刚那个会有问题!!!这样把: select * from 产品目录表 where nav_id like % ,$n_id,% ;
好的我试试,谢谢了
$sqlstr = "select * from ?品表 where concat(',',pro_navid,',') like '%,".$n_id."%,';
... find_in_set('n_id', pro_navid)
你 pro_navid 中的那些点不会是小数点吧?改成逗号
是用逗号隔开的,我试试,谢谢了
$sqlstr = "select * from ?品表 where concat(',',pro_navid,',') like '%,".$n_id."%,'";
??才?。
$sqlstr = "select * from ?品表 where concat(',',pro_navid,',') like '%,".$n_id.",%'";
$sqlstr = "select * from ?品表 where concat(',',pro_navid,',') like '%,".$n_id."%,'";

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