My iPhone 6 wouldn't boot up.

My iPhone 6 was left charging overnight (which I normally do, and so do alot of people in this house) but when I woke up, it was stuck in this apple logo boot up, I searched up for information for this problem but whenever I try to even turn it off, it goes to the battery empty screen, which is the screen that I usually get since I can't even go to DFU mode for it keeps on going on that screen, but when I just leave it charging once again on my pc, it goes to the apple logo, then just stays there, flashes black for a second, and apple logo once again, if anyone knows how to fix this, please do reply immediately, I also don't need the files that much here, I just need to use this phone.