Remove unused Images/files from upload folder laravel - laravel

Question

I have laravel5.4 application.I want to remove unused images/files from my upload folder which is not available in my database.
For example :
I have 50 images in my upload folder for user profile but some of the image not use for any user.i think he removed or update his image from frontend.
Yes i know we need to code to remove file when user update or remove profile picture at a time also delete from upload folder.but my app run from many time and i want to remove unused file using script not manually beacause i have lot's of files so it's hard to check and remove file manually.anyone can you please help me for create any function for remove file from folder.
Sorry for my bad English.

Answer 1

I use something like this in my AdminController to remove images by clicking on a button.
Maybe you need to change the path or extensions
public function deleteUnusedImages()
{
$file_types = [
'gif',
'jpg',
'jpeg',
'png'
];
$directory = public_path();
$files = File::allFiles($directory);
foreach ($files as $file)
{
$ext = strtolower(pathinfo($file, PATHINFO_EXTENSION));
if (in_array($ext, $file_types)) {
if(DB::table('users')->where('votes', '=', $file)->count())
continue; // continue if the picture is in use
echo 'removed' . basename($file)."<br />";
unlink($file); // delete if picture isn't in use
}
}
}