Excuse me: What do you mean by this two-sentence database operation statement?

$level 1=pdo_fetchall (' Select ID from '. TableName (' Shop_member '). ' Where agentid= '. $member [' id ']. "' ', ' id ');

$level 2=pdo_fetchall (' Select ID from '. TableName (' Shop_member '). ' Where Agentid in ('. Implode (', ', Array_keys ($level 1)). ') ', ' id ');

1th: Statements end up with a, ' id ' what does that mean?

2nd: Where Agentid in ('. Implode (', ', Array_keys ($level 1)). ') ', ' id ' doesn't understand

Thanks, man.

Reply to discussion (solution)

you echo $level 1; echo $level 2; I'll see.
$level 1 is to read a Agentid record
$level 2 is to read a set of Agentid records

you echo $level 1; echo $level 2; I'll see.
$level 1 is to read a Agentid record
$level 2 is to read a set of Agentid records

you echo $level 1; echo $level 2; I'll see.
$level 1 is to read a Agentid record
$level 2 is to read a set of Agentid records

Is the association ID, which is then grouped by ID

One is to read Id=xxx records.
The other is to read id=xxx or id=xxx1 or id=xxxx2 records.

One is to read Id=xxx records.
The other is to read id=xxx or id=xxx1 or id=xxxx2 records.

$sql = $empire->query ("select UserID from member where Agentid= '". $user [UserID]. "' GROUP by UserID ');

$sql 2= $empire->query ("select UserID from member where Agentid in ('). Implode (", Array_keys ($sql)). ') GROUP by userid ");

The first statement reads 3, but the second MySQL statement does not read the first piece of data

You echo "Select UserID from member where Agentid in ('. Implode (", Array_keys ($sql)). ') The results of GROUP by UserID in phpMyAdmin do you have data?

You echo "Select UserID from member where Agentid in ('. Implode (", Array_keys ($sql)). ') The results of GROUP by UserID in phpMyAdmin do you have data?

Array_keys ($sql) is the result of the previous MySQL statement query, which is then queried based on the last statement and grouped by the group by UserID

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