Try this ...
foreach ($_FILES['image']['tmp_name'] as $key => $val ) {
$filename = $_FILES['image']['name'][$key];
$filesize = $_FILES['image']['size'][$key];
$filetempname = $_FILES['image']['tmp_name'][$key];
$fileext = pathinfo($fileName, PATHINFO_EXTENSION);
$fileext = strtolower($fileext);
// here your insert query
}