I'm creating a site to upload Parallax images (created by Apple's Parallax Previewer), but I'm having problems verifying that the uploaded files is in this format. The format (*.lsr) is a only a couple of days old so there isn't really that much info around about it.
Is there any way I can check if the is of this type? I'm doing this in Laravel 5.1.
Try $request->file('filename')->getExtension() == '.lsr'
with a custom validation