魔术

$data = array();
while ($row = mysqli_fetch_array($res))
{
    $data[] = $row;
}

foreach ($data as $row) echo $row['name'];
foreach ($data as $row) echo $row['name'];
foreach ($data as $row) echo $row['name'];
foreach ($data as $row) echo $row['name'];
foreach ($data as $row) echo $row['name'];
foreach ($data as $row) echo $row['name'];