使用laravel 5.1将所有上传的文件移动到E：/ drive

How can be move all uploaded files to the E: drive using Laravel? This is my code:

$test = "E:";
$path = "checklist/uploads";
$destinationPath = $test . "/$path/";    
if (!file_exists($destinationPath)) {
    mkdir($destinationPath);
}