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Home Backend Development PHP Tutorial mysql语句怎么接收不到数组?

mysql语句怎么接收不到数组?

Jun 20, 2016 pm 12:35 PM

$sql=$empire->query("select userid,agentid,username from member where agentid='".$user[userid]."' group by userid");
    while($r=$empire->fetch($sql))/*逐行获取结果集中的记录,得到数组row*/
    {
        $array[]=$r;//接受结果集
    }

echo '

';<br>print_r($array);//打印数组没有问题,出来的是数组<br>echo '
Copy after login
';

我想将上面查询出来的$array这个数组传递到下面这个mysql语句中,应该怎么处理。用了group by userid进行分类,然后下面这个mysql语句是再次查询数据库,再然后根据上面分类出来的结果再进行分类。

$sql2=$empire->query("select userid,agentid,username from member where agentid in( ' . implode('', array_keys($array)) . ') group by userid");


回复讨论(解决方案)

$array 二维数组
array_keys($array) 得到的只是 $array 的第一维的下标(0,1,2,3....)

$array 二维数组
array_keys($array) 得到的只是 $array 的第一维的下标(0,1,2,3....)

请问 应该怎么写这个语句?
在while理循环有数据,可是在第一个语句里$array是没有数据的。

你到底想干什么?
这样硬凑代码是不行的

你到底想干什么?
这样硬凑代码是不行的


这是第二次查询连起来的语句,这样连起来可以查询,我想变成段一点的语句
select userid from member where agentid IN (select userid from member where agentid='$user[userid]' group by userid) group by userid

第二次查询结果依照第一次查询的分类,第二次可以这样写语句,但第三次查询还怎么写,那得多长的语句呀

第三次查询结果依照第二次查询分类

已经搞定了。

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