$db->beginTransaction();
  try{
    foreach ($arrsitelist as $k => $v){
      $time_open  = $v[2];
      $time_close = $v[3];
      
      $stmt= $db->prepare("select [登録時刻] from tmp_output where siteid='$k';");
      $stmt->execute();
      $time_cur =$stmt->fetchColumn();
			
      unset($stmt);//or $stmt=null;←-------------------------------------これがないと
      
      //時間を取得する
      if ($time_cur){
        $time_cur = (int)$time_cur/100;
        if ($time_close < $time_cur) {
          //$db->query("delete from tmp_output where siteid='$k';");
          
          $sql1 ="select $selectitem from v_mc ";
          $sql1 .="where (siteid='$k') and ([年] = $y) and ([月] = $m) and ";
          $sql1 .="([日] = $d) and ([登録時刻] <= ".$time_close."00);";
          $db->query('insert or replace into tmp_output '.$sql1);←----ここで落ちます　
        }
        
        echo $res."($time_open-$time_close)";
      } else {
        echo 'xx登録がないxx';
      }

    }
    $db->commit();
  } catch(Excetipn $e){
    $db->rollBack();
  };