$allfiles = $_POST['allfiles'];
    $separateby = $_POST['separateby'];
    if($allfiles != "")
    {
        $files = explode($separateby,$allfiles);
    }
    for($i=0;$i<count($files);$i++)
    {

        $file = trim($files[$i]);
        $uploadfile = explode('/', $file);
        $filename = array_pop($uploadfile);

        $newfilename = $news[$i];

        if (!$newfilename)
        {
            $newfilename = $filename;
        }
}