My Iphone 4s won't Turn On

I woke up and my Iphone 4s had no battery, so i plugged it in to charge, it's been almost two hours and nothing has worked, I see the battery symbol to tell me to charge it. I tried hard resetting it, nothing. It won't even show up on my computer!

It may be the charger or ask apple

Try to buy a new chargerger because somtimea the charger bends and loses currancy.