if(is_uploaded_file($_FILES["photosimg"]["tmp_name"]))
{
move_uploaded_file($_FILES["photosimg"]["tmp_name"], "../img/pages/photos/".$_FILES["photosimg"]["name"]);
$data = $_POST;
$nouser->photosimg = "img/pages/photos/".$_FILES["photosimg"]["name"];
R::store($nouser);
} else {
echo("Ошибка загрузки файла");
}
<input name="photosimg[]" type="file"/>
$_FILES["photosimg"]["tmp_name"][0]
будет первым из списка