错误

错误的关联查询

$data = $merchant->limit($pages->firstRow, $pages->listRows)->where($where)->order('mid desc')->select();
$str = "";

foreach ($data as $key => $val){

if($key==0){

$str = $val["mid"];

}else{

$str .=",".$val["mid"];

}

}

$map["merchant_id"] = array("in",$str);

// var_dump($val["mid"]);die;

$merchant_mer=$merchant_user->where($map)->select();

var_dump($merchant_mer);die;