Uploaded file name is weird | C:\xampp\tmp\php6837.tmp

Hey guys, i try to upload image and video. That files added to public path but in db not same name. How can i fix that? I'm trying to similar case of the problem but still not work for me.

My code: https://codeshare.io/2jNlOD Output of Database: http://prntscr.com/10owfzs