Загрузка mp3 фалов на сервер.

function uploader($dir, $file_loaded, $maxsize, $file_type, $limit_image_size="", $new_file_name=""){
    $max_size_file = $maxsize * 1024;
    if (isset($file_loaded)){
        $file_name = ($new_file_name=="") ? $file_loaded['name'] : $new_file_name.get_typefile($file_loaded['name'], ".");;
        if (is_uploaded_file($file_loaded['tmp_name'])){
            $file_tmp_name = $file_loaded['tmp_name'];
            $ext = substr($file_loaded['name'], 1 + strrpos($file_loaded['name'], "."));
            if (filesize($file_tmp_name) > $max_size_file) return 2;
            else if (!in_array($ext, $file_type)) return 3;
                 else {    
                     if (strpos($file_loaded['type'], 'image')!==false && is_array($limit_image_size)){
                         $size_load_file = getimagesize($file_tmp_name);
                         if ($size_load_file[0] > $limit_image_size[0] && $size_load_file[1] > $limit_image_size[1]) return 4;                        
                     }
             if(!@copy($file_loaded["tmp_name"], $dir.$file_name)) return 5;
         }    
        } else return 1;
    } else return 1;
return 0;
}